APA (7th ed.) Citation

Vergo, P., & Martin, I. (1992). Twentieth-century German painting. Sotheby's Publications.

Chicago Style (17th ed.) Citation

Vergo, Peter, and Irene Martin. Twentieth-century German Painting. London: Sotheby's Publications, 1992.

MLA (9th ed.) Citation

Vergo, Peter, and Irene Martin. Twentieth-century German Painting. Sotheby's Publications, 1992.

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