Wardle, Robert A. Robert Arnold  1890- <br/><br/>
The Principles of insect control/ 
by Robert A. Wardle and Philip Buckle 
 - Manchester:  The University press,  1923 
 - xvi, 295p:  illus  23cm 
 - Publications of the University of Manchester, no. CLV .
<br/><br/> Highly recommended for digitizing 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insect Control