Brown, Walter R. <br/><br/>
Physical science:  a search for understanding/ 
Walter R.Brown, Norman D.Anderson. 
 - Philadelphia:  J.B. Lippincott,  1972. 
 - 512 p.:   ill.;   24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0397435002 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.