00826cam a22002651 4500 gs 66000177 DLC 20260227111419.0 781024s1965 wyuab b 000 0 eng c gs 66000177 (OCoLC)4316414 U.S. Geol. Survey. Libr. UU OCoLC DLC premarc QE181 .A25 no. 51 553.09787 Wilson, William Harold, 1917- A field guide to the rocks and minerals of Wyoming, by William H. Wilson. Laramie, University of Wyoming, 1965. vi, 72 p. illus., map. 23 cm. Geological Survey of Wyoming. Bulletin 51 Bibliography: p. 69. Geology Wyoming. Petrology Wyoming. Mineralogy Wyoming. 30208 30208