एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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