Pyenson, Louis,  1909- <br/><br/>
Elements of plant protection. 
With line drawings by Emily B. Steffens. 
 - New York,  Wiley,  1951. 
 - x, 538 p.  illus.  22 cm. 
 - Wiley farm series .
<br/><br/>"Selected reference books": p. 488-491 
<br/><br/><label>LCCN: </label>agr51000548  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural pests
<br/><br/><label>LC Class. No.: </label>SB601  / .P9 
<br/><br/><label>Dewey Class. No.: </label>632 
<br/><br/><label>National Agricultural Library Call No.: </label>464.4  / P99