Published by United States Government Printing Office, Washington, D. C., 1970
First Edition
Paperback. Condition: Very Good. First Edition. Unmarked. 1 plate folded in rear pocket. ; 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. 1312L; 8vo 8" - 9" tall; 12 pages DN4.