APA (7th ed.) Citation

(1931). Jahrbuch der Luftfahrt. Lehmann.

Chicago Style (17th ed.) Citation

Jahrbuch Der Luftfahrt. München: Lehmann, 1931.

MLA (9th ed.) Citation

Jahrbuch Der Luftfahrt. Lehmann, 1931.

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