Seibel, Richard J.
Dust control at a transfer point using foam and water sprays (BM-TPR 97) Seibel, Richard J. - Washington Bureau of mines 1976
CONTROL EN DE POLVO EN LA MINA
622.807
Dust control at a transfer point using foam and water sprays (BM-TPR 97) Seibel, Richard J. - Washington Bureau of mines 1976
CONTROL EN DE POLVO EN LA MINA
622.807