Thier, Herbert D. <br/><br/>
Teaching elementary school science :   a laboratory approach / 
Herbert D. Thier. 
 - New Delhi :  Sterling,  c 1970. 
 - vii, 273 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>316  316 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary education---teaching. 
<br/><br/><label>Dewey Class. No.: </label>507 / T347t