WORTMAN STERLING,   CUMMINGS RALPH W.JR. <br/><br/>
TO FEED THIS WORLD:  THE CHALLENGE AND THE STRATEGY 

 - LONDON:  THE JOHNS HOPKINS UNIVERSITY PRESS,  1978. 
<br/><br/><label>ISBN: </label>0801821371. 
<br/><br/><label>Dewey Class. No.: </label>338.19 WOR