Borror, Donald Joyce,   1907- <br/><br/>
An introduction to the study of insects / 
  Insects 
Donald J. Borror, Charl es A. Triplehorn, Norman F. Johnson. 
 - 6th ed. 
 - Philadelphia :  Saunders College Publishing,  c1989. 
 - xiv, 875 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0030253977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Entomology.<br/>Insects-- United States.