Gupta, C. B. An introduction to statistical methods / by C. B. Gupta and Vijay Gupta. - 23rd Rev. ed. - New Delhi : Vikas Publishing Hse, 2004. - x, 829 p.,xxvii ; cm. ISBN: 8125916547 LCCN: sa 68012320 Subjects--Topical Terms: Statistics. LC Class. No.: HA29 / .G91783 2004 Dewey Class. No.: 311/.2