एपीए उद्धरण

Alexander, L. G. (1973). Practice and progress: An integrated course for pre-intermediate students. London: Longman.

शिकागो स्टाइल उद्धरण

Alexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1973.

एमएलए उद्धरण

Alexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1973.