एपीए उद्धरण

Paul Roberts. (1956). Patterns of English. New York: Harcourt, Brace and World.

शिकागो स्टाइल उद्धरण

Paul Roberts. Patterns of English. New York: Harcourt, Brace and World, 1956.

एमएलए उद्धरण

Paul Roberts. Patterns of English. New York: Harcourt, Brace and World, 1956.