Thomson, A. J. A practical English grammar : exercises 2 / A. J. Thomson and A. V. Martinet - 3rd ed. - Oxford : Oxford University Press, c1986. - 199p. ; 22 cm. ISBN: 0195620550 LCCN: Subjects--Topical Terms: English grammarEnglish language LC Class. No.: PE1128 / .T39 1986