Heimler, Charles H. <br/><br/>
Focus On Physical Science 

 - 
 - U.S.A.  Merrill Publishing Company  1989 
 - 614 
<br/><br/><label>ISBN: </label>0675031648 
<br/><br/><label>Dewey Class. No.: </label>C.530 .H467F c1989