Knox, David,  1943- <br/><br/>
Marriage :  who? when? why? / 
David Knox. 
 - Englewood Cliffs, N. J. :  Prentice-Hall,  1975. 
 - x, 213 p. ;  23 cm. 
 - Prentice-Hall sociology series. .
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0135593360 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marriage.<br/>Sex.<br/>Free love.