e.encyclopedia :   more than 1,000 links to homework ... 

 - 448 pages :   colour illustrations ;   28 cm 
<br/><br/><label>ISBN: </label>1405315520 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic information resources.
<br/><br/><label>Dewey Class. No.: </label>025.04