APA (7th ed.) Citation

Heyde, L. (1932). Röhr, Franz ([Electronic ed.].).

Chicago Style (17th ed.) Citation

Heyde, Ludwig. Röhr, Franz. [Electronic ed.]. 1932.

MLA (9th ed.) Citation

Heyde, Ludwig. Röhr, Franz. [Electronic ed.]. 1932.

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