On-farm Resaerch in Theory and Practice / 
edited by H. J. W. Mutsaers and P. Walker 
 - Nigeria:  Intec Printers ltd. ,  1991. 
 - vi. 204. :  ill. ;  24cm 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>9781310642 
<br/><br/><label>Source: </label>B-20094 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm Reserch
<br/><br/><label>LC Class. No.: </label>S602.5 1991  / F27