Jacobs, J. A. (1994). Reversals of the Earth's magnetic field. Cambridge University Press.
Cita Chicago (17th ed.)Jacobs, J. A. Reversals of the Earth's Magnetic Field. New York: Cambridge University Press, 1994.
Cita MLA (9th ed.)Jacobs, J. A. Reversals of the Earth's Magnetic Field. Cambridge University Press, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.