Sex & Gender :  An Introduction / 
Lips Hilary M. 
 - 14th ed. 
 - London :  Mayfield Pub . Co. ,  2001. 
 - xvii,553 p,: 
<br/><br/><label>ISBN: </label>0767416147 
<br/><br/><label>LC Class. No.: </label>HQ1075  / .L56  2001