Tagliamonte, Sali. Variationist sociolinguistics : change, observation, interpretation / Sali A. Tagliamonte. - Malden, MA : Wiley-Blackwell, 2012. - xxii, 402 p. : ill. ; 26 cm. - Language in society ; 40. . Includes bibliographical references and index. ISBN: 9781405135900 (hbk.) RM308.85 9781405135917 (pbk.) Subjects--Topical Terms: Language and languages--Variation.Sociolinguistics--Research.