Sill, Webster H.  Jr.  1916- <br/><br/>
The plant protection discipline:  Problems and possible developmental strategies/ 
Webster H. Sill Jr. 
 - New York:  Allanheld,  c1978 
 - x, 190 p.;  23 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 177-187 
<br/><br/><label>ISBN: </label>0470264438  $ 25.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants, Protection of<br/>Plant diseases<br/>Agricultural pests
<br/><br/><label>Dewey Class. No.: </label>632