United states agency for international devlopment <br/><br/>
Practical biblography for developing area 
by United states agency for international devlopment 
 -  1966 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>75445 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>Aa4:173.N6, K6.2