Imagen de portada para The porphyry coppers,
The porphyry coppers,
Título:
The porphyry coppers,

Rocky mountain fund series
Autor:
Parsons, A. B. (Arthur Barrette), 1887-1966.

American Institute of Mining, Metallurgical, and Petroleum Engineers.
Series:
Rocky mountain fund series
Format:
Libros
Publication Information:
New York, 1933.
Subject Term:
Copper mines and mining.

Copper mines and mining -- United States.

Porphyry.