Galecki, Andrzej <br/><br/>
Linear mixed-effects models using R: a step-by-step approach 

 - New York  Springer  2013 
 - 542p. 
<br/><br/><label>ISBN: </label>978-1-4614-3899-1 
<br/><br/><label>Dewey Class. No.: </label>519.682R  / GAL