Cita APA (7a ed.)

Cohen, I. B. (1971). Introduction to Newton's Principia. University Press.

Cita Chicago Style (17a ed.)

Cohen, I. Bernard. Introduction to Newton's Principia. Cambridge: University Press, 1971.

Cita MLA (9a ed.)

Cohen, I. Bernard. Introduction to Newton's Principia. University Press, 1971.