The Young people's encyclopedia of the United States /  Vol 3 Observatories/Zworkyin 
general editor : William E. Shapiro. 
 - Brookfield, Conn. :  Millbrook Press,  c1992. 
 - 252 pages  ill. (some col.)  19 cm 
 - The Young People's Encyclopedia of the United States  Observatories/Zworykin  Vol 3 .
<br/><br/> Includes index. 
<br/><br/> A multivolume encyclopedia with over 1200 alphabetically-arranged entries covering such topics as the history, physical features, festivals, and music of the United States and its neighbors, Mexico and Canada 
<br/><br/><label>ISBN: </label>1562941518 1562940546 9781562940546 9781562941512 
<br/><br/><label>LCCN: </label>91004141 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Juvenile<br/>Juvenile
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Encyclopedias.<br/>North America--Encyclopedias.
<br/><br/><label>Dewey Class. No.: </label>970