Editore: Louisiana State University., 1981
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Condizione: Very Good. ORIGINAL PUBLICATION; Softcovers; includes 24 folded plates (maps and cross sections); three-hole punched and placed in flexible binder; light creasing of upper corners of several plates, o/w in very good condition. Book.