Lass, Roger. English phonology and phonological theory : synchronic and diachronic studies / Roger Lass. - Cambridge ; New York : Cambridge University Press, 1976. - xii, 241 p. : diagrs. ; 24 cm. Includes index. ISBN: 0521210399 LCCN: 76000650 LC Class. No.: PE1133 .L37 2009 / .L3 Dewey Class. No.: 421/.5