Blough, Glenn Orlando. <br/><br/>
Elementary-school science and how to teach it 
[by] Glenn O. Blough [and] Albert J. Huggett. 
 - New York  Dryden Press  [1951] 
 - 532 p.  illus.  27 cm. 
<br/><br/><label>LCCN: </label>51006843  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.
<br/><br/><label>LC Class. No.: </label>Q181  / .B558 
<br/><br/><label>Dewey Class. No.: </label>372.35