Heimler, Charles H. <br/><br/>
Principles of science 

 - CHarles E. Merrill Publishing Company 
 - 532 p. ;   23 cm. 
<br/><br/><label>ISBN: </label>675076781 
<br/><br/><label>Dewey Class. No.: </label>R/503/H364p/08.2.096