Gega, Peter C. <br/><br/>
Science in elementary education / 
Peter C. Gega. 
 - 4th ed. 
 - New York:   Wiley,   1982.  
 - 600 p. :  ill. ;  26 cm. 
<br/><br/>includes bibliography p. 581-584 and index. 
<br/><br/><label>ISBN: </label>0471096784 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>372.35044