Glenn, Norval D. <br/><br/>
Cohort analysis 

 - London  Sage  1977 
 - 72 p. 
 - Quantitave Applications in the Social  Sciences; 5 .
<br/><br/><label>ISBN: </label>080390794X 
<br/><br/><label>Dewey Class. No.: </label>305.20723  / GLE