Seltzer, William <br/><br/>
Demographic data collection  a summary of experience 

 - New York  The population council  1973 
 - viii,50p.; 20cm. 
<br/><br/><label>ISBN: </label>878340165 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population<br/>Population - data collection<br/>Population measurement