GOTTFRIED, David
Distribution of gold in igneous rocks / by David Gottfried, Jack J. Rowe and Robert I. Tilling. -- Washington : United States Government Printing Office, 1972 - 42 p. -- (Geological Survey Professional Paper ; 727).
Rocas ígneas
Yacimientos de oro
552.3:553.41
Distribution of gold in igneous rocks / by David Gottfried, Jack J. Rowe and Robert I. Tilling. -- Washington : United States Government Printing Office, 1972 - 42 p. -- (Geological Survey Professional Paper ; 727).
Rocas ígneas
Yacimientos de oro
552.3:553.41