Mason, Robert D. Statistics : an introduction / Robert D. Mason, Douglas A. Lind and William G. Marchel - 4th ed. - Fort Worth : Saunders college Publishing, c1994. - xvii, 66 p. : Includes index. ISBN: 0030969174 LCCN: Subjects--Topical Terms: Statistics LC Class. No.: HA29 / .M267 1994 Dewey Class. No.: 519.5 / M411s