APA (7th ed.) Citation

Sammlung Goetz, Goetz, I., & Schumacher, R. (2001). The Mystery of painting. Sammlung Goetz.

Chicago Style (17th ed.) Citation

Sammlung Goetz, Ingvild Goetz, and Rainald Schumacher. The Mystery of Painting. Munchen: Sammlung Goetz, 2001.

MLA (9th ed.) Citation

Sammlung Goetz, et al. The Mystery of Painting. Sammlung Goetz, 2001.

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