COPPEN HELEN <br/><br/>
AIDS TO TEACHING AND LEARNING 

 -  NEW YORK  1969 
 - X/229 
<br/><br/><label>ISBN: </label>08029048 
<br/><br/><label>LC Class. No.: </label>371.3/COP 
<br/><br/><label>Dewey Class. No.: </label>371.3/COP