Dilley, Clyde A. <br/><br/>
Heath elementary mathematics : 
Dilley, Clyde A. 
 - Toronto  D.C. Heath and Co,.  1975 
 - 316p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>512.72 DIL-H