APA (7th ed.) Citation

Sotheby's. (2008). Contemporary art: Morning auction, London, 28 February 2008 at 10 am. Sotheby's.

Chicago Style (17th ed.) Citation

Sotheby's. Contemporary Art: Morning Auction, London, 28 February 2008 at 10 Am. London: Sotheby's, 2008.

MLA (9th ed.) Citation

Sotheby's. Contemporary Art: Morning Auction, London, 28 February 2008 at 10 Am. Sotheby's, 2008.