APA (7th ed.) Citation

Jacobs, J. A. (1994). Reversals of the earth's magnetic field (2. ed.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Jacobs, John A. Reversals of the Earth's Magnetic Field. 2. ed. Cambridge u.a: Cambridge Univ. Press, 1994.

MLA (9th ed.) Citation

Jacobs, John A. Reversals of the Earth's Magnetic Field. 2. ed. Cambridge Univ. Press, 1994.