Editore: United States Government Printing Office., 1990
Da: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condizione: Very Good. ORIGINAL Article, disbound from USGS Bulletin; no covers; in very good condition. Book.
Editore: J Research U.S. Geol Survey, 1978
Da: Larry W Price Books, Portland, OR, U.S.A.
Rivista / Giornale
Pamphlet. Condizione: Very Good. Vol 6, No 1, pp. 23-40, Maps, Illus, 4to, Extracted from orig vol, thus begins with title page, stapled & trimmed pamphlet, else VG.