Onwueme, I. C. <br/><br/>
Field crop production in tropical Africa :  principles and practice / 
by I.C. Onwueme and T.D. Sinha. 
 - The Netherlands :  Technical Centre for Agricultural and Rural Co-operation,  1991. 
 - v, 480 p. :  ill. 
<br/><br/><label>ISBN: </label>9290810866 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops--Africa.
<br/><br/><label>Dewey Class. No.: </label>633.0096  / O59