Illustrated encyclopedia of science and nature :   series index / 
EDUCATIIONAL TECHNOLOGIES LIMITED	 
 - [S. l.] :   Educational Technologies Limited,   c2004 
 - 143 p. ;   30 cm. +   1 CD ROM. 
<br/><br/><label>ISBN: </label>0-7835-2966-x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliography<br/>Indexes
<br/><br/><label>Dewey Class. No.: </label>GR. 503 I29 2005