Butz, William P., <br/><br/>
Countercyclical U.S. fertility and its implications / 
William P. Butz and Michael P. Ward   
 - 15 pages ;  28 cm. 
 - The Rand paper series;  P-6263 .
 - The Rand paper series;  P-6263  .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertility, Human--United States. <br/>Family size--United States