APA (7th ed.) Citation

Sotheby & Co. (1946). The Harmsworth Trust Library. Sotheby & Co.

Chicago Style (17th ed.) Citation

Sotheby & Co. The Harmsworth Trust Library. London: Sotheby & Co, 1946.

MLA (9th ed.) Citation

Sotheby & Co. The Harmsworth Trust Library. Sotheby & Co, 1946.

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