Crop improvement in Eastern and Southern Africa :  research objectives and on-farm testing a regional Workshop held in Nairobi, Kenya, 20-22 July 1983 / 
editor, Roger A. Kirkby 
 - Ottawa :  International Development Research Centre,  1984 
 - 122 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>088936396X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop yield--Congresses<br/>Farm produce--Congresses<br/>Field experiments--Congresses