Howarth, Vyvyan. <br/><br/>
Secret techniques of erotic delight / 
Vyvyan Howarth. 
 - [319] páginas :  ilustraciones;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sexo.
<br/><br/><label>LC Class. No.: </label>HQ31  / .H89 1966