Albrecht, Hartmut...[et al] <br/><br/>
Agricultural extension: basic concepts and methods 

 -  Wiley Eastern Ltd.  1998 
 - 278p. 
<br/><br/><label>ISBN: </label> 200 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SERICULTURE
<br/><br/><label>Dewey Class. No.: </label>630  / ALB.1