A platform for research: civil engineering, architecture and urbanism
Injury experience in quarrying ; 1959.
Information circular / Bureau of Mines, US Department of the Interior ; 8168
Injury experience in quarrying ; 1959.
Information circular / Bureau of Mines, US Department of the Interior ; 8168
Injury experience in quarrying ; 1959.
Information circular / Bureau of Mines, US Department of the Interior ; 8168
1963
IV, 56 S
graph. Darst
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English