Beltsville Symposia in Agricultural research <br/><br/>
Biosystematic agriculture 

 - Montclair  Allanheld Osmun and Co. Publishers Inc  1978 
 - 340p 
<br/><br/>Beltsville Symposia in Agricultural research: Biosystematic agriculture.  Montclair.  Allanheld Osmun and Co. Publishers Inc, 1978. 0-470-26416-0--(630.7206BEL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-470-26416-0 
<br/><br/><label>Dewey Class. No.: </label>630.7206  / BSAR