Nypan, Astrid <br/><br/>
Extension theory and local theory - some problems of planned change 

 - Oslo  Institute of Sociology, University of Oslo  1974 
 - 129p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural extension work
<br/><br/><label>LC Class. No.: </label>EAF S544.5.T3N9