Freeborn, Dennis. Varieties of English : an introduction to the study of language / Dennis Freeborn with David Langford and Peter French. - Basingstoke : Macmillan, 1986. - 222 p. : maps ; 22 cm. 1 sound cassette ISBN: 0333379969 0333406702 Subjects--Topical Terms: English language--Grammar--20th century LC Class. No.: PE1112 Dewey Class. No.: 428