Carothers, Steven W. 1943- The Colorado River through Grand Canyon : natural history and human change / Steven W. Carothers and Bryan T. Brown. - Tucson : University of Arizona Press, c1991. - xix, 235 p., [8] p. of plates : ill. (some col.) ; 27 cm. Includes bibliographical references and index. ISBN: 0816511314 (cl. : alk. paper) 0816512329 (pbk. : alk. paper) Subjects--Topical Terms: Stream ecology--Arizona--Glen Canyon Dam Region.Stream ecology--Arizona--Grand Canyon.Stream ecology--Colorado River (Colo.-Mexico)Natural history--Arizona--Glen Canyon Dam Region. LC Class. No.: QH105.A65 / C38 1991 Dewey Class. No.: 574.5/26323/097913