Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.