Human sexuality in four perspectives 
Frank A. Beach, editor ; Milton Diamond ... [et al.]. 
 - Johns Hopkins paperback ed. 
 - Baltimore  Johns Hopkins University Press  c1978. 
 - 330 p.  ill.  23 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0801818451  0801821479 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex<br/>Sexo