Alexander, L.G. Practice and progress : an integrated course for pre-intermediate students / L.G. Alexander. - London : Longmans, c1967. - xxii, 232 p. : ill. ; 24 cm. - New concept english . ISBN: 0582523303 Subjects--Topical Terms: English language--Textbooks for foreign speakers. Dewey Class. No.: 428 / A376