APA (7th ed.) Citation

Kulke, E., Lentz, S., & Wardenga, U. Geography in Germany. Société Royale Belge de Géographie and the Belgian National Committee of Geography.

Chicago Style (17th ed.) Citation

Kulke, Elmar, Sebastian Lentz, and Ute Wardenga. Geography in Germany. Société Royale Belge de Géographie and the Belgian National Committee of Geography.

MLA (9th ed.) Citation

Kulke, Elmar, et al. Geography in Germany. Société Royale Belge de Géographie and the Belgian National Committee of Geography.