Gupta S.P. Statistical methods / by S.C. Gupta - New Delhi : Sultan Chand & Sons , 2017. - xx , 1432 p. ill. ; 24 c.m ISBN: 9789351610281 Subjects--Topical Terms: Statistics.Statistics -- General.MATHEMATICS -- Applied.Mathematical statistics. Dewey Class. No.: 519.5 / GUP/S