Friedman, Nathaniel A. Introduction to ergodic theory, by Nathaniel A. Friedman. - New York, Van Nostrand Reinhold [1970] - iv, 143 p. illus. 21 cm. - Van Nostrand Reinhold mathematical studies #29 . Bibliography: p. 137-143. LCCN: 73011948 Subjects--Topical Terms: Ergodic theory. Dewey Class. No.: 515.42