World Book, Inc. <br/><br/>
Young Scientist : Our World in Danger Vol - 19  Textual Documents 

 - Chicago  World Book, Inc.  1992 
 - 62. 
<br/><br/><label>ISBN: </label>071666061X   
<br/><br/><label>Subjects--Index Terms: </label>General 
<br/><br/><label>Dewey Class. No.: </label>000  / WOR