Cohen, Leon W.,  1903- <br/><br/>
The structure of the real number system / 
Leon W. Cohen and Gertrude Ehrlich. 
 - New York :  Van Nostrand Reinhold,   1963. 
 - 116 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numbers, Theory of<br/>Numbers, Real<br/>Arithmetic--Foundations.