Cita APA (7th ed.)

Gribbin, J. (2001). White holes. Electric Book Co..

Cita Chicago (17th ed.)

Gribbin, John. White Holes. London: Electric Book Co., 2001.

Cita MLA (9th ed.)

Gribbin, John. White Holes. Electric Book Co., 2001.

Atenció: Aquestes cites poden no estar 100% correctes.