Mineral deposits of Central America - Roberts, Ralph Jackson, 1911-; Irving, Earl M. (Earl Montgomery), 1911- (Washington, [D.C.] : U.S. G.P.O., 1957)
"Prepared under the auspices of the International Cooperation Administration, U.S. Dept. of State."
Bibliography: p. 195-198.
Includes index.
Keywords: Mines and mineral resources -- Central America