Pierce, John T. <br/><br/>
The food resource / 
John T. Pierce 
 - New York :  Longman,  1990 
 - 334 p. :  ill. ;  23 cm . 
 - Themes in resources management .
<br/><br/>Includes bibliographies and indexes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural geography<br/>Food supply<br/>Food crops