Proceedings of the third annual farming systems research and extension workshop in the middle belt zone of Nigeria, march 20-23 1991, Badeggi  

 - Badeggi   National cereals research institute   1991 
 - 125pg 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural research --Congresses<br/>Farming systems --Congresses--Nigeria 
<br/><br/><label>LC Class. No.: </label>S561.P76 1991