APA (7th ed.) Citation

Voelker, K. (1916). Polen (9.-11. Tsd.). Ev. Bund.

Chicago Style (17th ed.) Citation

Voelker, Karl. Polen. 9.-11. Tsd. Berlin: Ev. Bund, 1916.

MLA (9th ed.) Citation

Voelker, Karl. Polen. 9.-11. Tsd. Ev. Bund, 1916.

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