Editore: USGS Bulletin 795-A, 1927, ii + 24 pp. + folded map + 1 plate., 1927
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. No wraps issued; ex-library; minor shelfwear w/ light creasing of corners of leaves; o/w in good condition.
Editore: USGS Bulletin 795-A, 1927, ii + 24 pp. + 1 folded map + 1 plate., 1927
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. No wraps issued; owner's stamps; minor shelfwear w/ light creasing of corners of leaves; a couple of small nicks on fore-edge of title page; o/w in good condition.
Editore: USGS Bulletin 795-A, 1927, ii + 24 pp. + folded map + 1 plate., 1927
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. No wraps issued; ex-corporate library; minor shelfwear w/ light creasing of corners of leaves; o/w in good condition.
Editore: USGS Bulletin 795-A, 1927, ii + 24 pp. + folded map + 1 plate., 1927
Da: Eryops Books, Stephenville, TX, U.S.A.
No covers issued; minor shelfwear w/ light creasing of corners of leaves; very small hole on fore-edge of title page; o/w in good condition.
Editore: USGS Bulletin 795-A, 1927, ii + 24 pp. + folded map + 1 plate., 1927
Da: Eryops Books, Stephenville, TX, U.S.A.
No covers issued; owner's stamp; minor shelfwear w/ light creasing of corners of leaves; o/w in good condition.