Language change progress or decay?

• Main Author: Aitchison, Jean, 1938-
• Format: Book
• Language: English
• Published: Cambridge Cambridge University Press 1991
• Edition: 2nd edition
• Series: Cambridge approaches to linguistics
• Subjects: Συγκριτική γλωσσολογία; Διαχρονική γλωσσολογία
• Physical Description: xi, 258 p. fig. 20 cm.
• Bibliography: Includes bibliographical references and index
• ISBN: 0521422833