Wallace, J.P.
A study of ore deposits for the practical miner - New York Hill Publishing Company 1908 - 349 p. ilus.
YACIMIENTOS MINERALES
A/553.1/W21
A study of ore deposits for the practical miner - New York Hill Publishing Company 1908 - 349 p. ilus.
YACIMIENTOS MINERALES
A/553.1/W21