Gupta, C.B. An introduction to statistical methods/ C.B. Gupta, Vijay Gupta - 23rd ed - New Delhi : Vikas Pub., 2004 - x, 829, xxvii p.; 22 cm. ISBN: 8125916547 (pbk) Rs. 210.00 Subjects--Topical Terms: Statistics--Problems, Exercise, etc. Dewey Class. No.: 519