01158cam a22003011a 4500 gs 57000204 DLC 20260227111405.0 790212s1957 dcuab b 001 0 eng c gs 57000204 (OCoLC)4646079 U.S. Geol. Survey Liby TxU DNAL DLC QE75 .B9 no. 1034 TN30 .R6 Copy 2. 407 G29B no.1034 X400 553 Roberts, Ralph Jackson, 1911- Mineral deposits of Central America / by Ralph J. Roberts and Earl M. Irving ; With a section on manganese deposits of Panama, by Frank S. Simons. Washington, [D.C.] : U.S. G.P.O., 1957. x, 205 p. : ill., maps (some col.) ; 24 cm. + 16 folded maps in case. Geological Survey bulletin ; 1034 "Prepared under the auspices of the International Cooperation Administration, U.S. Dept. of State." Bibliography: p. 195-198. Includes index. Mines and mineral resources Central America. Irving, Earl M. (Earl Montgomery), 1911- 29165 29165