APA (7th ed.) Citation

Z. F & Herm, G. Gerhard Herm: Kelti.

Chicago Style (17th ed.) Citation

Z. F and Gerhard Herm. Gerhard Herm: Kelti.

MLA (9th ed.) Citation

Z. F and Gerhard Herm. Gerhard Herm: Kelti.

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