Zimmermann, Erich Walter, 1888- <br/><br/>
World resources and indutries  a functional appraisal of the availability of agricultural and industrial materials 
by Erich W. Zimmermann 
 - Rev. ed. 
 - New York  Harper & Row  1951 
 - 832 p. : ill. ; 27 cm. 
<br/><br/> Includes indexes 
<br/><br/>Includes bibliographies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources<br/>Industry<br/>Agriculture--Economic aspects<br/>Geography, Economic