एपीए उद्धरण

Lyttleton, R. A. (1961). Modern Universe. Hodder and Stoughton.

शिकागो स्टाइल उद्धरण

Lyttleton, Raymond A. Modern Universe. London: Hodder and Stoughton, 1961.

एमएलए उद्धरण

Lyttleton, Raymond A. Modern Universe. Hodder and Stoughton, 1961.