एपीए उद्धरण

Westman, R. S. (1975). The copernican achievement. London: University of California Press.

शिकागो स्टाइल उद्धरण

Westman, Robert S. The Copernican Achievement. London: University of California Press, 1975.

एमएलए उद्धरण

Westman, Robert S. The Copernican Achievement. London: University of California Press, 1975.