Wortman, Sterling. <br/><br/>
To feed this World :  the challenge and the strategy / 
Sterling Wortman and Ralph W. Cummings. 
 - Hopkins :  Hopkins University Press,  1978 
 - xiv, 440 p. 
<br/><br/>Includes index and bibliography. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0801821371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Food supply.