APA (7th ed.) Citation

Whipple, F. (1968). Earth, moon, and planets (1968). Harvard University Press.

Chicago Style (17th ed.) Citation

Whipple, F.L. Earth, Moon, and Planets (1968). Cambridge, Mass: Harvard University Press, 1968.

MLA (9th ed.) Citation

Whipple, F.L. Earth, Moon, and Planets (1968). Harvard University Press, 1968.