Bongaarts , John  <br/><br/>
Estimating the impact of contraceptive prevalence on fertility :   aggregate and age-specific versions of a model / 
John Bongaarts & Sharon Kirmeyer 
 - New York :  Population Council (PC) ,  1980 
 - 36p.  :  ill. ;  22 cm.  
 - Working papers (Population Council. Center for Policy Studies)  No. 63 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birth control--Mathematical models<br/>Fertility, Human--Mathematical models
<br/><br/><label>Gov. Doc. Class. No.: </label>US PC CPS WP-63