SHANER(WW); PHILIPP(P F); SCHMEHL(W R) <br/><br/>
Farming Systems Research and Development 

 -  1982  Westview Press 
 - 1-414  0  Paper 
<br/><br/> Hard Binding 
<br/><br/><label>ISBN: </label>0-86531-425-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication
<br/><br/><label>Dewey Class. No.: </label>9P:(J)    M2