Williams, George A, et al. <br/><br/>
Challenges to science: Physical science / 
Williams, George A, et al. 
 -  Webster Publishing Co., New York,  1973 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>530 WIL-C