The new book of knowledge :  Vol. A. part 1. Children's encyclopedies and dictionaris / 
M.A. Martha Glauber Shapp, B.A. Cathleen FitzGerald and others. 
 - USA :  Grolier Incorporated,  1981. 
 - 625, [6] p. :  ill. ;  27 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0-7172-0512-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science