Developments in Fertility Control /  Report of a WHO scientific group. 

 - Geneva :  World Health Organization,  c 1969. 
 - 36 p. ;  25 cm. 
 - World Health Organization Technical report series,  No. 424. .
<br/><br/>Bibliography : p. 33- 36. 
<br/><br/>338  338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertility, Human
<br/><br/><label>Dewey Class. No.: </label>613.94 / W893d