APA (7th ed.) Citation

Sotheby's (Firm). (1990). Post war and contemporary art and 20th century British sculpture. Sotheby's.

Chicago Style (17th ed.) Citation

Sotheby's (Firm). Post War and Contemporary Art and 20th Century British Sculpture. London: Sotheby's, 1990.

MLA (9th ed.) Citation

Sotheby's (Firm). Post War and Contemporary Art and 20th Century British Sculpture. Sotheby's, 1990.

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