Conway, Donald <br/><br/>
Arithmetic skills and problem solving 
Donald Conway and Martin J. Dreyfuss 
 - New York:  Harcourt, Brace & World, Inc.,  c1968. 
 - 453 p. :  22 cm. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics study--ME
<br/><br/><label>Dewey Class. No.: </label>513 CON