Citazione Stile APA (7a Edizione)
Sotheby's. (1997). Sotheby's: London, Thursday 20 March 1997 : Old Master, 19th and 20th Century and Contemporary Prints. Sotheby's.
Citazione stile Chigago Style (17a edizione)
Sotheby's. Sotheby's: London, Thursday 20 March 1997 : Old Master, 19th and 20th Century and Contemporary Prints. Londres, Inglaterra: Sotheby's, 1997.
Citatione MLA (9a ed.)
Sotheby's. Sotheby's: London, Thursday 20 March 1997 : Old Master, 19th and 20th Century and Contemporary Prints. Sotheby's, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.