APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.