Cita APA (7th ed.)
Sotheby's. (1997). Sotheby's: London, Friday 5 December 1997 : Important Jewels. Sotheby's.
Cita Chicago (17th ed.)
Sotheby's. Sotheby's: London, Friday 5 December 1997 : Important Jewels. Londres, Inglaterra: Sotheby's, 1997.
Cita MLA (9th ed.)
Sotheby's. Sotheby's: London, Friday 5 December 1997 : Important Jewels. Sotheby's, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.