APA aipamena

Siemens, G. (1957). History of the house of Siemens. Freiburg: Verlag Karl Alber.

Chicago Style aipamena

Siemens, Georg. History of the House of Siemens. Freiburg: Verlag Karl Alber, 1957.

MLA aipamena

Siemens, Georg. History of the House of Siemens. Freiburg: Verlag Karl Alber, 1957.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.