Editore: Journal of Geology, vol. 36, no. 4, 1928, pp. 362-375., 1928
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Reprint; issued w/ front wrap only; minor shelfwear w/ small creases at corners of wraps and leaves; small chips at top corner of wraps; nick along upper edge of leaves; light soiling of wraps; o/w in good condition.