Snijders Tom, A. B. <br/><br/>
Multilevel analysis:  an introduction to basic and .modeling / 
by A. B. Snijders Tom and J. Bosker Roel 
 - 2nd ed. 
 - Los Angeles :  Sage Publications,  2012. 
<br/><br/><label>ISBN: </label>9781849202015  £ 27.99 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics - Multilevel Analysis 
<br/><br/><label>Dewey Class. No.: </label>511.8