Berger, Carl F.(et al) <br/><br/>
Modular activities program in science 

 - Houghton mifflin company, Boston  1974 
 - viii, 280 
<br/><br/><label>ISBN: </label>0-395-16701-9 
<br/><br/><label>Dewey Class. No.: </label>507 Ber