Farmer, Walter A. Farrell, Margaret A. <br/><br/>
Systematic instruction in science for the middle and high school year 

 - Massachusetts  Addison-Wesley Publishing Company  1980 
 - 353  p. 
<br/><br/><label>ISBN: </label>0-201-02435-7 
<br/><br/><label>Dewey Class. No.: </label>CIR  507.12 F22 1980