Litzenberger, Samuel C. <br/><br/>
Guide for field crops in the tropics and the subtropics / 
[edited by] Samuel C. Litzenberger. 
 - Washington, D.C. :  U.S. Goverment Printing Office,  c1974. 
 - vii, 321 pages :  Illustrations ;  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops--Tropics.
<br/><br/><label>National Agricultural Library Call No.: </label>SB111.A35 
<br/><br/><label>Gov. Doc. Class. No.: </label>S 18.8:C 88