APA (7th ed.) Citation

Umbreit, P. (1932). Riedel, Emil ([Electronic ed.].).

Chicago Style (17th ed.) Citation

Umbreit, Paul. Riedel, Emil. [Electronic ed.]. 1932.

MLA (9th ed.) Citation

Umbreit, Paul. Riedel, Emil. [Electronic ed.]. 1932.

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