Editore: Oklahoma Geological Survey, Norman, OK., 1947
Da: Tiber Books, Cockeysville, MD, U.S.A.
Paperback. Condizione: Very Good. 8vo, paperback. Vg. condition. Institutional stamps on front cover, no other markings, contents clean, binding tight. 151 pp., 6 maps in rear pocket (all present), 9 plates in the text.