Holmes, Janet, 1947- An introduction to sociolinguistics / Janet Holmes and Nick Wilson. - Fifth Edition. - London : Routledge, 2017. - xxi, 538 pages : illustrations, maps ; 26 cm. - Learning about language . Includes bibliographical references and index. ISBN: 9781138845008 (hardcover) 9781138845015 (softcover) Subjects--Topical Terms: Sociolinguistics. Dewey Class. No.: 306.44 / H I