Edité par Geol. Surv. Can. Pap. 66-17, 1967, 120 pages + map in pocket., 1967
Vendeur : Eryops Books, Stephenville, TX, Etats-Unis
Soft Cover. Etat : Very Good. Softcovers; ex-corporate library; minor shelfwear w/ small tear at base of paper covering of spine; o/w in very good condition.