Eckel, Edwin Butt,  1906- <br/><br/>
Geology and mineral resources of Paraguay, a reconnaissance. / 
With sections on igneous and metamorphic rocks by Charles Milton and Edwin B. Eckel. Soils by Pedro Tirado Sulsona. Prepared in cooperation with the Departamento de Geología, Ministério de Obras Públicas y Comunicaciones, República del Paraguay, under the auspices of the Institute of Inter-American Affairs. 
 - Washington :  U.S. Govt. Print. Off.,  1959. 
 - v, 110 p. :  ill., maps (2 fold. col. in pocket) diagrs., tables. ;  29 cm. 
<br/><br/>Bibliography : p. 101-105. 
<br/><br/><label>LCCN: </label>gs 59000154  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Paraguay<br/>Mines and mineral resources--Paraguay<br/>Petrology--Paraguay<br/>Soils--Paraguay
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 327 
<br/><br/><label>Dewey Class. No.: </label>558.92 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:327