Singer, Judith D. and Willett, John B. <br/><br/>
Applied longitudinal data analysis  modeling change and event occurrence 

 - New York  Oxford University Press  2003 
 - xx, 644p. Bibl. Index. 
<br/><br/>  
<br/><br/><label>ISBN: </label>9780195152968 
<br/><br/><label>Dewey Class. No.: </label>330.015195  / Si617.AL