Cita APA (7a ed.)

(1957). Geomagnetism: Instruction manuals. Pergamon Press.

Cita Chicago Style (17a ed.)

Geomagnetism: Instruction Manuals. Oxford: Pergamon Press, 1957.

Cita MLA (8a ed.)

Geomagnetism: Instruction Manuals. Pergamon Press, 1957.