Bartle, Robert Gardner. <br/><br/>
Introduction to real analysis / 
Robert G. Bartle, Donald R. Sherbert. 
 - 2nd ed. 
 - New York :  Wiley,  c1992. 
 - xi, 404 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0471510009 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical analysis.<br/>Functions of real variables.