Ladefoged, Peter. A course in phonetics / by Peter Ladefoged, Keith Johnson. - 6th ed. - New Delhi : Cengage Learning India, c2011 [2012]. - xiii, 322 p. : ill. ; 24 cm. 1 CD-ROM Includes bibliographical references and index. ISBN: 9788131516591 8131516598 Subjects--Topical Terms: Phonetics.English language--Phonetics. Dewey Class. No.: 414.8 / LAC