Edité par Illinois State Geological Survey Mineral Notes 98, 1987, 45 Pp., 1987
Vendeur : Eryops Books, Stephenville, TX, Etats-Unis
Soft Cover. Etat : USED_VERYGOOD. Softcovers; minor shelfwear w/ small creases at corners of wraps and leaves; o/w in very good condition.