APA (7th ed.) Citation

Klever, U. (1979). Unser völlig blauer Planet.

Chicago Style (17th ed.) Citation

Klever, Ulrich. Unser Völlig Blauer Planet. 1979.

MLA (9th ed.) Citation

Klever, Ulrich. Unser Völlig Blauer Planet. 1979.

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