Parish, Charles R., <br/><br/>
A structural approach to arithmetic / 
Charles R. Parish, Roy L. McCormick. 
 - New York:  Van Nostrand Reinhold,  1970. 
 - ix, 421 pages :  illustrations ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Foundations.