Editore: Gulf Coast Association of Geological Societies., 1973
Da: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condizione: Very Good. ORIGINAL Article, disbound from journal; no covers; first page in xerox, o/w in very good condition. Journal.
Editore: Gulf Coast Association of Geological Societies., 1974
Da: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condizione: Very Good. ORIGINAL Article, disbound from GCAGS Transactions volume; no covers; in very good condition. Journal.