Ward, Morgan. <br/><br/>
Modern elementary mathematics / 
Morgan Ward and Clarence Ethel Hardgrove. 
 - Massachusetts :  Addison wesley,  1964. 
 - xii, 420 p. :  ill. ;  24 cm. 
 - Addison-Wesley series in science and mathematics education .
<br/><br/>311   311 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.<br/>Deductive logic.<br/>Inductive logic.
<br/><br/><label>Dewey Class. No.: </label>510 / W215m