APA (7th ed.) Citation

Sotheby's. (1989). Sotheby's: Art at auction 1988-89. Sotheby's.

Chicago Style (17th ed.) Citation

Sotheby's. Sotheby's: Art at Auction 1988-89. London: Sotheby's, 1989.

MLA (9th ed.) Citation

Sotheby's. Sotheby's: Art at Auction 1988-89. Sotheby's, 1989.

Warning: These citations may not always be 100% accurate.