De Ropp, Robert S. <br/><br/>
Sex energy  the sexual force in man and animals 
[by] Robert S. De Ropp. 
 - N[ew] Y[ork]  Delacorte Press  [1969] 
 - xiv, 236 p.  illus.  22 cm. 
<br/><br/> "A Seymour Lawrence book." 
<br/><br/>Bibliography: p. 229-231. 
<br/><br/><label>LCCN: </label>70089706  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex customs--History.<br/>Sexual behavior in animals
<br/><br/><label>LC Class. No.: </label>HQ12  / .D4 
<br/><br/><label>Dewey Class. No.: </label>591.5/1