Studies in food production a national institute tour report/ 
edited by Nwulia 
 - kuru  national institute  1986 
 - xi,170,;illus  Hbk 
<br/><br/><label>ISBN: </label>9781980141 
<br/><br/><label>LC Class. No.: </label>S 564. 5 .S8 1986