Roberts, Ralph Jackson,  1911- <br/><br/>
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 .
<br/><br/> "Prepared under the auspices of the International Cooperation Administration, U.S. Dept. of State."  Includes index. 
<br/><br/>Bibliography: p. 195-198. 
<br/><br/><label>LCCN: </label>gs 57000204  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Central America.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 1034 
<br/><br/><label>Dewey Class. No.: </label>553 
<br/><br/><label>National Agricultural Library Call No.: </label>407  / G29B no.1034