Research in human reproduction : Biennial report 1988-1989 / 

 - Geneva:  WHO,  1990 
 - 191 p.:  ill. ;  30 cm. 
<br/><br/><label>ISBN: </label>9241561408 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraception<br/>Family Planning