APA استشهاد

Campbell, W. H. (2003). Introduction to geomagnetic fields (2nd ed.). Cambridge University Press.

استشهاد بنمط شيكاغو

Campbell, Wallace H. Introduction to Geomagnetic Fields. 2nd ed. Cambridge: Cambridge University Press, 2003.

MLA استشهاد

Campbell, Wallace H. Introduction to Geomagnetic Fields. 2nd ed. Cambridge University Press, 2003.