Editore: United States Government Printing Office, Washington, 1963
Condizione: very good. from the abstract, "Regional gravity and aeromagnetic surveys covering about 1,000 square miles have been made in the La Sal Mountains area of southeast Utah and southwest Colorado as part of a program of geophysical studies of the Colorado Plateau." softcover, 11" x 8.5", plates 14-17 folded inside rear cover, 91-116 pages, illustrated.