LEVAY SIMON <br/><br/>
Human sexuality/ 
Sion Levay and Sharon M.Valente 
 - 2nd ed. 
 - Sunderland  Sinauer Associates  2006 
 - xxvii,651p. 
<br/><br/> includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0878934650 
<br/><br/><label>Dewey Class. No.: </label>306.7 LEW