APA (7th ed.) Citation

Jeffreys, H. (1976). The earth: Its origin history and physical constitution (6. ed.). Univ. Press.

Chicago Style (17th ed.) Citation

Jeffreys, Harold. The Earth: Its Origin History and Physical Constitution. 6. ed. Cambridge: Univ. Press, 1976.

MLA (9th ed.) Citation

Jeffreys, Harold. The Earth: Its Origin History and Physical Constitution. 6. ed. Univ. Press, 1976.