Croll, Neil Argo. <br/><br/>
Parasitism and other associations/ 
by Neil A. Croll. 
 - London:  Pitman Medical,  1973. 
 - iii, 98 p. :   ill., maps ;   26 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0272760730 
<br/><br/><label>LCCN: </label>75-325913 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Parasitism.