Marks, John L <br/><br/>
Teaching arithematic for understandings / 
by John L Marks, C Richard Purdy and Lucien B Kinney 
 - New York :  Mc grawhill,  1958. 
 - 423p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maths
<br/><br/><label>Dewey Class. No.: </label>370.7  / MAR.T