Butts, David P. <br/><br/>
The teaching of science :  a self-directed planning guide / 
by David Butts 
 - New York :  Harper & Row,  1974 
 - xi, 265 p. :  illus. ;  24 cm. 
<br/><br/><label>ISBN: </label>0060411023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)