Haas, Kurt. <br/><br/>
Understanding sexuality / 
Kurt Haas, Aldelaide Haas and Lorraine Baillie. 
 - Missouri :  Mosby,  c1987. 
 - vi, 290 p. :  ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex.
<br/><br/><label>LC Class. No.: </label>HQ21  / .H33