Sinclair, Barbara. Activate your English : intermediate Coursebook / Subtitle on cover: Short course for adults Barbara Sinclair, Philip Prowse. - Cambridge : Cambridge University Press, 1996. - 95 p. : ill., 1 map ; 30 cm. ISBN: 0521484200 LCCN: 97156135 Subjects--Topical Terms: English language--Textbooks for foreign speakers. LC Class. No.: PE1128 / .S56 1996 Dewey Class. No.: 425 / SIA 1996