Editore: USGS Bulletin 1319-F, 1971, 113 pp. + 2 maps in pocket., 1971
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condizione: Good. ORIGINAL PUBLICATION; Softcovers; ex-library; shelfwear w/ lightly bumped corners and small nicks along edges of wraps; paper covering of spine rubbed; o/w good condition.
Editore: United States Geological Survey/USGS/Government Printing Office/GPO, Washington, DC, 1971
Da: Robert Gavora, Fine & Rare Books, ABAA, Talent, OR, U.S.A.
Soft cover. Condizione: Very Good. 113 pages with photographs, maps and tables. The two large folded maps are present in the rear pocket. Stamp of geologist Richard H. Jahns on the front cover. Shows mild use. A very good copy. Book.