Cutler, Ann; McShane, Rudolph <br/><br/>
Trachrtenberg speed system of basic mathematics 

 -  Doubleday & Co. Inc., New York  1960 
 - 270 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  CUT-T