Editore: Texas Foundations Research Center, 1982, 192 Pp., 1982
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condizione: Good. Softcovers; light wrinkling of wraps and several leaves; o/w in good condition.
Editore: Texas Foundations Research Center, 1978, 184 Pp., 1978
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condizione: Very Good. Softcovers; bound into stiff cardboard; ex-library; minor shelfwear; o/w in very good condition.