APA (7th ed.) Citation

Killy, W. (1999). Gies - Hessel.

Chicago Style (17th ed.) Citation

Killy, Walther. Gies - Hessel. 1999.

MLA (8th ed.) Citation

Killy, Walther. Gies - Hessel. 1999.

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