Whelpton, Pascal Kidder,  1893- <br/><br/>
Needed population research, 
by P.K. Whelpton ... Prepared under the auspices of the Population Association of America. 
 - Lancaster, Pa.,  The Science Press Printing Company,  1938. 
 - xv, 196 p.  23 cm. 
<br/><br/><label>LCCN: </label>39011213  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Población
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Estados Unidos ---Población
<br/><br/><label>LC Class. No.: </label>HB851  / .W47 
<br/><br/><label>Dewey Class. No.: </label>312.0973