Ault, Ruth L. <br/><br/>
Development perspectives  edited by Ruth L. Ault. 

 - Santa Monica  Good Year Publishing  1980 
 - viii, 328p., 23cm. 
<br/><br/><label>ISBN: </label>0-8302-2166-2. 
<br/><br/><label>Dewey Class. No.: </label>155.4,  / D33D