Littell,R.C& At al <br/><br/>
SAS System for mixed model 

 - First edition 
 -  SAS Institute Inc.,Cary, NC,USA  1996 
 - 633 pages 
<br/><br/><label>ISBN: </label>1-55544-7791 
<br/><br/><label>Dewey Class. No.: </label>L005<br/>SAS