Purcell, Dennis. <br/><br/>
Agricultural extension and research :  achievements and problems in national systems / 
Dennis L. Purcell, Jock R. Anderson. 
 - Washington, D.C. :  World Bank,  c1997. 
 - xxi, 282 p. :  ill. ; 
 - A World Bank operations evaluation study, .
<br/><br/><label>ISBN: </label>0821338781 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural extension work--Evaluation.<br/>National agricultural research systems--Evaluation.<br/>Agricultural development projects--Evaluation.
<br/><br/><label>LC Class. No.: </label>S544.6  / .P86 1997