Brueckner, Leo J.  1890-1967 <br/><br/>
Gaining number power / 
Leo J. Brueckner, Elda L Merton, Foster E. Grossnickle. 
 - New York:   Holt, Rinehart and Winston,   1961.  
 - 410 p. :  ill. ;  24 cm. 
 -  6 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>372.72