एपीए उद्धरण

Clarke, W. M. (1967). The city in the world economy. London: Penguin.

शिकागो स्टाइल उद्धरण

Clarke, William M. The City in the World Economy. London: Penguin, 1967.

एमएलए उद्धरण

Clarke, William M. The City in the World Economy. London: Penguin, 1967.