Whitfield, Philip J. <br/><br/>
The biology of parasitism :  an introduction to the study of associating organisms / 
Philip J. Whitfield 
 - Baltimore :  University Park Press,  1979 
 - 277p. :  ill. ;  22 cm. 
 - Series of student texts in contemporary biology .
<br/><br/><label>ISBN: </label>0839114591 
<br/><br/><label>LCCN: </label>79-004952 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Parasites<br/>Symbiosis