Verlag: U. S. Geological Survey, Washington, D. C., 1953
Erstausgabe
Paperback. Zustand: Good. First Edition. Unmarked, except for company stamp on cover and catalog sticker. Map preserved in poacket. Upper right corner has been brused inside cover. ; 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. 988C; 8vo 8" - 9" tall; 29-43 pages DV1.