Barks, Robert A. Descriptive statistics and probability theory / [by] Robert A. Barks. - London, Hutchinson, 1972. - xv, 194 p. illus. 22 cm. ISBN: 0091125103 0091125111 (pbk) LCCN: 73156124 Subjects--Topical Terms: Mathematical statistics.Probabilities. Dewey Class. No.: 310 / BAD 1972