Alexander, L.G. New concept English : Practice and progress, An integrated course for pre-intermediate student / L.G. Alexander - 21st imp. - London : Longman, 1976 - 231 p. Subjects--Topical Terms: Tiếng Anh--Ngữ phápEnglish language--GrammarEnglish language. Dewey Class. No.: 425 / ALE 1976