APA (7th ed.) Citation

Ehlers, H. O. (1899). Zum Martins-Appel: 1899. s.n.].

Chicago Style (17th ed.) Citation

Ehlers, Heinrich Otto. Zum Martins-Appel: 1899. [Danzig: s.n.], 1899.

MLA (9th ed.) Citation

Ehlers, Heinrich Otto. Zum Martins-Appel: 1899. s.n.], 1899.

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