APA (7th ed.) Citation

Röhrich, V. (1899). Die Kolonisation des Ermlandes.

Chicago Style (17th ed.) Citation

Röhrich, Viktor. Die Kolonisation Des Ermlandes. 1899.

MLA (9th ed.) Citation

Röhrich, Viktor. Die Kolonisation Des Ermlandes. 1899.

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