APA (7th ed.) Citation

(2009). Stress: SOS der Seele. National Geographic Deutschland.

Chicago Style (17th ed.) Citation

Stress: SOS Der Seele. Hamburg: National Geographic Deutschland, 2009.

MLA (8th ed.) Citation

Stress: SOS Der Seele. National Geographic Deutschland, 2009.

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