Blough, Glenn Orlando. <br/><br/>
Elementary-school science and how to teach it / 
[by] Glenn O. Blough, Julius Schwartz [and] Albert J. Huggett. 
 - Rev. ed. 
 - New York :  Holt, Rinehart and Winston,  c1958 
 - xvi, 608 p. :  ill. ;  26 cm. 
<br/><br/>Includes Bibliographical References and Index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>372.35  / BLE 1958