Benson, Jacqueline M. <br/><br/>
Weeds in tropical crops :   a review of abstracts on constraints in production caused by weeds in maize, rice, sorghum, millet, groundnuts and cassava 1952-1980 /  
by Jacqueline M. Benson. 
 - Rome :   Food and Agriculture Organization of the United Nations,   1982. 
 - 63 p. ;    28 cm. 
 - FAO plant production and protection paper ;   no. 32, sup. 1. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds --Control -- Research.--Research.------