Cita APA (7a ed.)

Campbell, W. H. (1997). Introduction to geomagnetic fields. Cambridge University Press.

Cita Chicago Style (17a ed.)

Campbell, Wallace H. Introduction to Geomagnetic Fields. Cambridge [etc.]: Cambridge University Press, 1997.

Cita MLA (9a ed.)

Campbell, Wallace H. Introduction to Geomagnetic Fields. Cambridge University Press, 1997.