Turnbull, Colin M. The mountain people / Colin M. Turnbull. - New York : Simon & Schuster, 1987, c1972. - 309 p. : ill. ; 21 cm. "A Touchstone book." Includes index. ISBN: 0671640984 (pbk.) LCCN: 87-004716 Subjects--Topical Terms: Ik (African people) Dewey Class. No.: 306/.089965