Webster H. Sill <br/><br/>
Plant protection discipline : Problems and possible developmental strategies 

 - Montclair  Allanheld Osmun and Co. Publishers Inc  1978 
 - 190p 
<br/><br/>Webster H. Sill: Plant protection discipline : Problems and possible developmental strategies.  Montclair.  Allanheld Osmun and Co. Publishers Inc, 1978. 0-470-26443-8--(632.9SIL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-470-26443-8 
<br/><br/><label>Dewey Class. No.: </label>632.9  / SIL