APA (7th ed.) Citation

Sotheby's (Firm). (1986). Old master paintings - July 1986, Part 2. Sotheby.

Chicago Style (17th ed.) Citation

Sotheby's (Firm). Old Master Paintings - July 1986, Part 2. London: Sotheby, 1986.

MLA (9th ed.) Citation

Sotheby's (Firm). Old Master Paintings - July 1986, Part 2. Sotheby, 1986.

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