APA (7th ed.) Citation

Winterhager, K., Inter Nationes, B., & Brüder Hartmann, B. (1986). Photographic Masterpieces. No. 2 "The Seven Mountains from Rolandsbogen to the Ölberg". about 1932.

Chicago Style (17th ed.) Citation

Winterhager, Klaus, Bonn Inter Nationes, and Berlin Brüder Hartmann. Photographic Masterpieces. No. 2 "The Seven Mountains from Rolandsbogen to the Ölberg". About 1932. 1986.

MLA (8th ed.) Citation

Winterhager, Klaus, et al. Photographic Masterpieces. No. 2 "The Seven Mountains from Rolandsbogen to the Ölberg". About 1932. 1986.