Methods of fertility regulation :  advances in research and clinical experience: report 

 - Geneva :  World Health Organization,  1971. 
 - 48p.:  ill. ;  24cm. 
 - World Health Organization Technical Report Series ;  no.473 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraception.<br/>Fertility
<br/><br/><label>Dewey Class. No.: </label>616.9