APA (7th ed.) Citation

Otten, H. (1973). Friedrich, Johannes (27.08.1893-12.08.1972).

Chicago Style (17th ed.) Citation

Otten, H. Friedrich, Johannes (27.08.1893-12.08.1972). 1973.

MLA (8th ed.) Citation

Otten, H. Friedrich, Johannes (27.08.1893-12.08.1972). 1973.

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