Assessment 
Ysseldyke, Salvia. 
 - Eighth edition. 
 -  Houghton Mifflin Company.  2001 
 - xxiv, 712 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-618-04281-4 
<br/><br/><label>Dewey Class. No.: </label>371.3 Sa3a 2001