Editore: Bulletins of American Paleontology, vol. 4, no. 20, 1908, 39 pp. + 4 plates., 1908
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Softcovers; ex-corporate library; minor shelfwear w/ light creasing of edges of wraps; a couple of small tears on edges of wraps; o/w in good condition.