Lips, Hilary M. <br/><br/>
Sex and gender : an introduction/ 
Hilary M. Lips 
 - 6th ed. 
 - Boston :  McGraw-Hill Higher Education,  2008. 
<br/><br/>Includes bibliographical references (p. 596-655 ) and indexes 
<br/><br/><label>ISBN: </label>0073405531 9780073405537 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex differences (Psychology)<br/>Sex role.