The sex life of the unmarried adult   : an inquiry into and an interpretation of current sex practices /  
edited by Ira S. Wile, M. D. 
 - New York :   The Vanguard Press,   [1934] 
 - 320 p. ;   21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Costumbres sexuales--S.XX<br/>Ética sexual