Hoiberg, Dale H <br/><br/>
The new encyclopedia Britannica - Vol. 21: Macropedia - Knowledge in depth 

 - 15th ed 
 - Chicago  Barron's Educational Series  2007 
 - 1018 p.  29 cm. 
<br/><br/> 005211  X 189 
<br/><br/><label>ISBN: </label>2006921233 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.
<br/><br/><label>Dewey Class. No.: </label>301  / N532