Becht J Edwin <br/><br/>
World resource management    Key to civilizations and social achievement. 

 -  1975 
<br/><br/><label>Standard No.: </label>80058 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X:271-77.1'N7, L5