Constantine, Larry L. <br/><br/>
Group marriage :  a study of contemporary multilateral marriage by Larry L. and Joan M. Constantine. 

 - New York :  Collier Books,  1974. 
 - xii, 299 p. :  ill. ;  21 cm. 
<br/><br/>Includes bibliographical references (p. 291-299) and index. 
<br/><br/><label>ISBN: </label>002075910X 
<br/><br/><label>LCCN: </label>74-010607 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Free love.<br/>Marriage--United States.