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001 1205959
003 http://id.bnportugal.gov.pt/bib/catbnp/1205959
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200 1# $aTexts of permissible explosives$fby Clarence Hall and Spencer P. Howell
210 #9 $aWashington$cGouvernment Print. Office,$d1913
215 ## $a1 v.$cil.$d8.
225 2# $aDepartment of the Interior. Bureau of Mines.$iCol. Amer.
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701 #1 $aHowell,$bSpencer Pritchard,$f1880-1937$4070$31170243
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Etiqueta de registo: 00254nam 2200025 450
001 2015781
003 http://id.bnportugal.gov.pt/bib/catbnp/2015781
100 ## $a20190227d1912 m y0pory01030103ba
101 0# $aeng
102 ## $aUS
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200 1# $aInvestigations of explosives used in coal mines$fby Clarence Hall, W. O. Snelling and S. P. Howell$gwith a chapter on the natural gas used at Pittsburgh by G. A. Burrell$gand an introduction by Charles E. Munroe
205 ## $aSecond edition, revised
210 #9 $aWashington$cGovernment Printing Office,$d1912
215 ## $a4, 197, [1] p., 1 desdobr., 6 il. extratexto$cil.$d24 cm
225 2# $aDepartment of the Interior. Bureau of Mines.$hBulletin 15
700 #1 $aHall,$bClarence,$f18---19--$31170242
701 #1 $aSnelling,$bWalter O.,$f1880-1965$4070$31743682
701 #1 $aHowell,$bSpencer Pritchard,$f1880-1937$4070$31170243
701 #1 $aBurrel,$bG. A.,$f18---19--$4070$31743686
702 #1 $aMunroe,$bCharles Edward,$f1849-1938$4080$31743688
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Etiqueta de registo: 00254nam 2200025 450
001 2021720
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100 ## $a20190514d1913 m y0pory01030103ba
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200 1# $a The selection of explosives used in engineering and mining operations$fby Clarence Hall and Spencer P. Howell
210 #9 $aWashington$cGovernment Printing Office,$d1913
215 ## $a50 p., 2 extratextos$cil.$d26 cm
225 2# $aBulletin$fDepartment of the Interior. Bureau of Mines$v48
700 #1 $aHall,$bClarence,$f18---19--$31170242
701 #1 $aHowell,$bSpencer Pritchard,$f1880-1937$4070$31170243
711 00 $aEstados Unidos.$bDepartment of the Interior.$bBureau of Mines$4070$3750859
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856 40 $2Cópia digital disponível em University of North Texas - Digital Library$uhttps://digital.library.unt.edu/ark:/67531/metadc12263/m2/1/high_res_d/Bulletin0048.pdf
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Etiqueta de registo: 00254nam 2200025 450
001 2021836
003 http://id.bnportugal.gov.pt/bib/catbnp/2021836
100 ## $a20190515d1912 m y0pory01030103ba
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200 1# $aInvestigations of fuse and miners' squibs$fby Clarence Hall and Spencer P. Howell
210 #9 $aWashington$cGovernment Printing Office,$d1912
215 ## $a19, [1 br.] p.$d26 cm
225 2# $aTechnical paper$fDepartment of the Interior. Bureau of Mines$v7
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Etiqueta de registo: 00254nam 2200025 450
001 2021831
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100 ## $a20190515d1913 m y0pory01030103ba
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200 1# $aInvestigations of detonators and electric detonators$fby Clarence Hall and Spencer P. Howell
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215 ## $a73, [1 br.] p., 7 extratextos$cil.$d26 cm
225 2# $aBulletin$fDepartment of the Interior. Bureau of Mines$v59
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Etiqueta de registo: 00254nam 2200025 450
001 2021930
003 http://id.bnportugal.gov.pt/bib/catbnp/2021930
100 ## $a20190516d1915 m y0pory01030103ba
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200 1# $aPermissible explosives tested prior to March 1, 1915$fby Spencer P. Howell
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215 ## $a16 p., [1] f. solta$d26 cm
225 2# $aTechnical paper$fDepartment of the Interior. Bureau of Mines$v100
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856 40 $2Cópia digital disponível em HathiTrust.org$uhttps://hdl.handle.net/2027/mdp.39015077560814
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Etiqueta de registo: 00254nam 2200025 450
001 2022028
003 http://id.bnportugal.gov.pt/bib/catbnp/2022028
100 ## $a20190517d1917 m y0pory01030103ba
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200 1# $aPermissible explosives tested prior to January 1, 1917$fby Spencer P. Howell
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215 ## $a19, [1 br.] p.$cil.$d26 cm
225 2# $aTechnical paper$fDepartment of the Interior. Bureau of Mines$v169
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711 00 $aEstados Unidos.$bDepartment of the Interior.$bBureau of Mines$4070$3750859
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856 40 $2Cópia digital disponível em HathiTrust.org$uhttps://hdl.handle.net/2027/mdp.39015077565664
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