Thomson, Audrey Jean. Practical english grammar : a classic grammar reference with clear explanations of grammatical structures and forms / Audrey Jean Thomson. - low priced ed ed. - [S.l.] : Oxford University Press, 1987. - 384 p. ; 22 cm. Paperback. This is a clear, comprehensive reference grammar. ISBN: 0194313484 9780194313483 Dewey Class. No.: 428.2 / THO