Authors in depth : copper level 

 - Massachusetts  Prentice hall  2000 
 - 211 p 
<br/><br/><label>ISBN: </label>0-13-052383-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>LC Class. No.: </label>PZ 5 .A93/