Problems in systematics of parasites 
Edited by Gerald D. Schmidt 
 - Baltimore:   University Park Press,   1969. 
 - 131 pages :    illustrations , ports. ;    23 cm. 
<br/><br/> 'Proceedings of a symposium held under the auspices of the American Association for the Advancement of Science.' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Parasites<br/>Zoology--Classification