Aitchison, Jean, 1938- Language change : progress or decay? / Jean Aitchison. - 3rd ed. - Cambridge, U. K. : Cambridge University Press, 2001. - xi, 312 p. : ill. ; 21 cm. - Cambridge approaches to linguistics . Includes bibliographical references (p. 281-303) and index. ISBN: 0521791553 RM218.09 LCCN: 00-031267 Subjects--Topical Terms: Linguistic change.