APA (7th ed.) Citation

Bauer, L. A. (1904). The Present problems of terrestrial magnetism. s.n.

Chicago Style (17th ed.) Citation

Bauer, Louis Agricola. The Present Problems of Terrestrial Magnetism. [S.l.: s.n, 1904.

MLA (9th ed.) Citation

Bauer, Louis Agricola. The Present Problems of Terrestrial Magnetism. s.n, 1904.