एपीए उद्धरण

Williams, M. (1976). A preface to Hardy. Longman.

शिकागो स्टाइल उद्धरण

Williams, Merryn. A Preface to Hardy. London ; New York: Longman, 1976.

एमएलए उद्धरण

Williams, Merryn. A Preface to Hardy. Longman, 1976.