एपीए उद्धरण

Sobel, R. (1983). IBM Colossus: The unauthorized, unvarnished, untamperred truth about America's corporate giant. Toronto: Bantam Books.

शिकागो स्टाइल उद्धरण

Sobel, Robert. IBM Colossus: The Unauthorized, Unvarnished, Untamperred Truth About America's Corporate Giant. Toronto: Bantam Books, 1983.

एमएलए उद्धरण

Sobel, Robert. IBM Colossus: The Unauthorized, Unvarnished, Untamperred Truth About America's Corporate Giant. Toronto: Bantam Books, 1983.