Nelson, Gilbert D. <br/><br/>
Making mathematics work 
[by] G. D. Nelson [and] H.E. Grime, assisted by F. N. Burroughs. 
 - Boston,  Houghton Mifflin  [1955] 
 - 630 p.  illus.  25 cm. 
 - Riverside mathematics series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic.
<br/><br/><label>LC Class. No.: </label>QA106  / .N38 1955 
<br/><br/><label>Dewey Class. No.: </label>510  / NEL 1955