Brueckner, Leo J.  <br/><br/>
Making Number Discoveries / 
Leo J. Brueckner, Elda L. Mertton and Foster E. Grossnickle 
 - New York :  Hjolt, Rinnehart and Winston, Inc,  1960. 
 - 378 p. :  ills;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic
<br/><br/><label>Dewey Class. No.: </label>372.7  / BRU 1960