APA (7th ed.) Citation

Sotheby's (Firm). (1970). Catalogue of Impressionist and modern paintings and sculpture, drawings and watercolours. Sotherby.

Chicago Style (17th ed.) Citation

Sotheby's (Firm). Catalogue of Impressionist and Modern Paintings and Sculpture, Drawings and Watercolours. London: Sotherby, 1970.

MLA (9th ed.) Citation

Sotheby's (Firm). Catalogue of Impressionist and Modern Paintings and Sculpture, Drawings and Watercolours. Sotherby, 1970.

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