The Biology of mutualism  ecology and evolution 
edited by Douglas H. Boucher. 
 - 1st Oxford University Press paperback. 
 - New York  Oxford University Press  1988, c1985. 
 - x, 388 p.  ill.  21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mutualism Biology<br/>Evolution