APA (7th ed.) Citation

Worldwatch Institute, Heinrich-Böll-Stiftung, & Germanwatch. Zur Lage der Welt .. Oekom.

Chicago Style (17th ed.) Citation

Worldwatch Institute, Heinrich-Böll-Stiftung, and Germanwatch. Zur Lage Der Welt .. München: Oekom.

MLA (9th ed.) Citation

Worldwatch Institute, et al. Zur Lage Der Welt .. Oekom.