United Nations. Department of International Economic and Social Affairs. <br/><br/>
Levels and trends of contraceptive use as assessed in 1988 

 - New York  The Author  1989 
 - 129p.;  28cm. 
 - Population studies; no. 110 .
<br/><br/><label>Dewey Class. No.: </label>DB301.321091  / UNI