Wallinga, Les. <br/><br/>
Physical Science, :  Activity Guide : Duplicating Masters / 
L. Wallinga. 
 - Glenview, Illinois :  Scott, Foresman & Company,  c1983. 
 - 32 p. 
<br/><br/><label>ISBN: </label>0-693-13722-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics