APA (7th ed.) Citation

(2012). Grüne Städte. Bertelsmann.

Chicago Style (17th ed.) Citation

Grüne Städte. Bielefeld: Bertelsmann, 2012.

MLA (8th ed.) Citation

Grüne Städte. Bertelsmann, 2012.

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