Richardson, John Sanford <br/><br/>
Methods and materials for teaching general and physical science 
by John S. Richardson and G. P. Cahoon. 
 - 1st ed. 
 - New York  McGraw-Hill  1951. 
 - viii, 485 p.  illus.  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>51009382  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.
<br/><br/><label>LC Class. No.: </label>Q181  / .R54 
<br/><br/><label>Dewey Class. No.: </label>607