Carlson, Reynold Edgar. Recreation in American life / Reynold Edgar Carlson, Theodore R. Deppe and Janet R. MacLean. - 2d ed. - Belmont, Calif. : Wadsworth Pub. Co., 1972. - xiv, 552 p. : illus. ; 24 cm. Includes bibliographies and index. ISBN: 0534000118 Subjects--Topical Terms: Recreation--United States. Dewey Class. No.: 790.0973 / CAR 1972