एपीए उद्धरण

Marshall, A. (1981). Principles of economics. London: Macmillan.

शिकागो स्टाइल उद्धरण

Marshall, Alfred. Principles of Economics. London: Macmillan, 1981.

एमएलए उद्धरण

Marshall, Alfred. Principles of Economics. London: Macmillan, 1981.