Wren, F. Lynwood <br/><br/>
Basic mathematical concepts / 
F. Lynwood Wren 
 - New York  McGraw-Hill  1965 
 - vii, 398 p.  col. illus.  24 cm. 
<br/><br/> Gratis<br/>Lalitha Janakiraman 
<br/><br/><label>Nat. Bib. No.: </label>GB65-18679 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Foundations.<br/>Geometry--Foundations.
<br/><br/><label>Dewey Class. No.: </label>510 WRE