APA (7th ed.) Citation

(1961). Carl Duisberg: 29.9.1861 - 19.3.1935.

Chicago Style (17th ed.) Citation

Carl Duisberg: 29.9.1861 - 19.3.1935. Köln, 1961.

MLA (9th ed.) Citation

Carl Duisberg: 29.9.1861 - 19.3.1935. 1961.

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