Gold in Porphyry Copper Systems

by Daniel R. Shawe, Roger P. Ashley

$10 · Offered by Crossroads Books

First edition

Washington, D. C. U. S. Gov't Printing Office 1990 , 1990. First Edition. Softcover. Very Good-. Item #19938 Book Description; Spine has staples. Pages are clean and not marred by notes or folds. Covers are square with wear as noted. Ships Safe and Fast; U. S. Geological Survey Bulletin; Vol. 1857E; B&W Illustrations; 4to 11 - 13 tall; 55 pages DN1.

• Binding: Softcover

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