APA (7th ed.) Citation

Wagner, D., & Niess, C. (1981). Berlin, 22.9.81. Hugo Hoffmann.

Chicago Style (17th ed.) Citation

Wagner, Dieter, and Christoph Niess. Berlin, 22.9.81. Berlin: Hugo Hoffmann, 1981.

MLA (9th ed.) Citation

Wagner, Dieter, and Christoph Niess. Berlin, 22.9.81. Hugo Hoffmann, 1981.

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