Aspects of the biology of symbiosis / 
edited by Thomas C. Cheng 
 - Baltimore :  University Park Press,  1971 
 - x, 327.: ill 
<br/><br/>Includes references and index 
<br/><br/><label>ISBN: </label>839100396 
<br/><br/><label>LC Class. No.: </label>QH 548