Nettle, Daniel. Vanishing voices : the extinction of the world's languages / Daniel Nettle and Suzanne Romaine. - New York : Oxford University Press, c2000. - x, 241 p. : ill., maps ; 24 cm. Includes bibliographical references (p. [215]-224) and index. ISBN: 0195136241 (cloth) LCCN: 99016979 Subjects--Topical Terms: Language obsolescence.Language maintenance. LC Class. No.: P40.5.L33 / N48 2000 Dewey Class. No.: 417/.7