Mathematics / 
Ernest R. Duncan ...[et al.]. 
 - Toronto :  Houghton miffin,  c 1978. 
 - 342 p. :  ill. ;  24 cm. 
<br/><br/>300   300  
<br/><br/><label>ISBN: </label>0-395-25462-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>510 / D912m