Editore: Journal of Geology, vol. 36, no. 7, 1928, pp. 615-629., 1928
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Reprint; softcovers; ex-library; minor shelfwear w/ light creasing of edges of wraps and leaves; light soiling of wraps; o/w in good condition.