00770cam a22002531 4500 gs 43000009 DLC 20260227111348.0 760825s1942 nmub b s001 0 eng c gs 43000009 (OCoLC)2395314 U.S. Geol.Survey. Libr. LNU DLC premarc TN24.N6 A232 no. 17 551.75 Thompson, Marcus Luther, 1906- Pennsylvanian system in New Mexico. Socorro, 1942. 92 p. 2 maps (1 fold.) 23 cm. New Mexico. Bureau of Mines and Mineral Resources. Bulletin no. 17 Bibliography: p. 84-85. Geology, Stratigraphic Pennsylvanian. Geology New Mexico. 27869 27869