Editore: Museum of Northern Arizona, Flagstaff, AZ, 1967
Da: Sabino Books, Oro Valley, AZ, U.S.A.
Prima edizione
Paperback. Condizione: VG. First edition. Pictorial stapled wrappers, some wear bumped corners, edge wear. 4to - over 9¾" - 12" tall. "An hypothesis developed at the Symposium on Cenozoic Geology of the Colorado Plateau in Arizona, August 1964." Museum of Northern Arizona Bulletin No. 44. 97 pp. illus.
Editore: Museum of Northern Arizona, 1967
Da: Books From California, Simi Valley, CA, U.S.A.
paperback. Condizione: Very Good.