Milliken,G.A& Johnson,D.E <br/><br/>
Analysis of Messy data, Volume 3: Analysis of covariance 

 - Edition 2 
 -  Chapman & Hall/CRC  2002 
 - 605 pages 
<br/><br/><label>ISBN: </label>1-58488-083-x 
<br/><br/><label>Dewey Class. No.: </label>M519.5an