Handbook for prospectors and operators of small mines
Bernewitz, M.W. von
Handbook for prospectors and operators of small mines - New York: McGraw Hill 1954 - x, 547p. : il; 19 cm.
Geomagnetismo
Sísmica
Handbook for prospectors and operators of small mines - New York: McGraw Hill 1954 - x, 547p. : il; 19 cm.
Geomagnetismo
Sísmica