Downie, N. M. Basic statistical methods / N. M. Downie. - 5th ed / . - New York : Harper and Row , 1983. - viii,371p. : ill.,figs.,tables ; 23cm . Includes bibliography and index ISBN: 0060417285 USD. 35.95 Subjects--Index Terms: STATISTICS Dewey Class. No.: 519.5 / DOW/b