Sellers, Gene R. Elementary statistics / Gene R. Sellers, Stephen A. [sic] Vardeman. - 2nd ed. - Philadelphia : Saunders College Pub., c1982. - x, 598 p. : ill. (some col.) ; 25 cm. Includes index. ISBN: 0030584566 LCCN: 81053097 Subjects--Topical Terms: Statistics. LC Class. No.: QA276.12 / .S44 1982 Dewey Class. No.: 519.5 / SEE 1982