APA (7th ed.) Citation

Lehmann-Russbüldt, O. (1941). Zirkular.

Chicago Style (17th ed.) Citation

Lehmann-Russbüldt, Otto. Zirkular. Leicester, 1941.

MLA (9th ed.) Citation

Lehmann-Russbüldt, Otto. Zirkular. 1941.

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