Biological control of insect pests and weeds / 
Edited by Paul DeBach ; Assistant editor Evert I. Schlinger. 
 - London :  Chapman and Hall Ltd,  [1964]. 
 - xxiv,844 p. :  [1] l.portr. : ill. 
<br/><br/>Includes bibliogr. references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects pests