Geology of the Conterminous United Stated At 1: 2,500,000 Scale-A Digital Representation of the 1974 P. B. King and H. M. Beikman Map

by P. G. Schruben

$40 · Offered by Crossroads Books

U. S. Geological Survey, 1994. CD-ROM. In original plastic wrapping, never opened; DDS-11; 8vo 8" - 9" tall. More

Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.