Guide for field crops in the tropics and the subtropics 
edited by Samuel C. Litzenberger 
 - Washington, D.C  Office of Agriculture, Technical Assistance Bureau, Agency for International Development  1974 
 - vii, 321 p.  ill. maps (1 folded) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tropical crops<br/>Field crops--Tropics
<br/><br/><label>Dewey Class. No.: </label>633  / .00913