APA (7th ed.) Citation

(1920). Briefe an Conrad Schmidt . [27. Oktober 1890].

Chicago Style (17th ed.) Citation

Briefe an Conrad Schmidt . [27. Oktober 1890]. 1920.

MLA (8th ed.) Citation

Briefe an Conrad Schmidt . [27. Oktober 1890]. 1920.

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