Science / 
Ira C. Davis ... [et al.]. 
 - Teacher's ed. 
 - New York :  Holt, Rinehart & Winston,  c1970. 
 - 3 vols. : ill. 
<br/><br/> vol. 1: Observation and experiment ; vol. 3: Discovery and progress. 
<br/><br/><label>ISBN: </label>0030828791 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.