APA (7th ed.) Citation

Tippelt, H., & Hirsch, P. _grau.

Chicago Style (17th ed.) Citation

Tippelt, Heiko, and Philipp Hirsch. _grau.

MLA (9th ed.) Citation

Tippelt, Heiko, and Philipp Hirsch. _grau.

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