Cita APA (7th ed.)
Gubbins, D., & Herrero-Bervera, E. (2007). Encyclopedia of Geomagnetism and Paleomagnetism. Springer Netherlands. https://doi.org/10.1007/978-1-4020-4423-6
Cita Chicago (17th ed.)
Gubbins, David, i Emilio Herrero-Bervera. Encyclopedia of Geomagnetism and Paleomagnetism. Dordrecht: Springer Netherlands, 2007. https://doi.org/10.1007/978-1-4020-4423-6.
Cita MLA (9th ed.)
Gubbins, David, i Emilio Herrero-Bervera. Encyclopedia of Geomagnetism and Paleomagnetism. Springer Netherlands, 2007. https://doi.org/10.1007/978-1-4020-4423-6.
Atenció: Aquestes cites poden no estar 100% correctes.