Template:Accents of English
Wells, John C. (1982). Accents of English. Volume 1: An Introduction (pp. i–xx, 1–278), Volume 2: The British Isles (pp. i–xx, 279–466), Volume 3: Beyond the British Isles (pp. i–xx, 467–674). Cambridge University Press. ISBN 0-52129719-2, 0-52128540-2, 0-52128541-0.
