Campbell, W. H. (1989). Quiet daily geomagnetic feilds. Birkhauser Verlag.
Chicago Edition CitationCampbell, Wallace H. Quiet Daily Geomagnetic Feilds. Basel: Birkhauser Verlag, 1989.
MLA引文Campbell, Wallace H. Quiet Daily Geomagnetic Feilds. Birkhauser Verlag, 1989.
警告:這些引文格式不一定是100%准確.