Cita APA (7a ed.)

Jeffreys, H. (1962). The earth: Its origin, history, and physical constitution (4th ed.). University Press.

Cita Chicago Style (17a ed.)

Jeffreys, Harold. The Earth: Its Origin, History, and Physical Constitution. 4th ed. Cambridge: University Press, 1962.

Cita MLA (9a ed.)

Jeffreys, Harold. The Earth: Its Origin, History, and Physical Constitution. 4th ed. University Press, 1962.