S.P. Gupta Statistical methods / S. P. Gupta. - 45th ed / - New Delhi : Sultan Chand & sons, 2017 - xx, 1432 p.; ill. charts: 24 x 16 cm. It includes bibliographical referrences and index. ISBN: 9789351611127 Subjects--Topical Terms: STATISTICAL METHODS Dewey Class. No.: 519.5 / GUP/S