Principles of real analysis / S.L. Gupta & Nisha Rani. Gupta, S. L. Rani, Nisha. Mathematical analysis. Functions of real variables. QA300 .A48 1998 510 21 GUP Includes bibliographical references (p. 399-400) and index. New Delhi : Vikas PUB., 1994. 1994. 1994 Text xiii, varies pages : eng