APA (7th ed.) Citation

Zellekens, H., & Fontaine, J. (1985). Zahlungsart: Geldkarte. RGH.

Chicago Style (17th ed.) Citation

Zellekens, Hermann-Josef, and Joachim Fontaine. Zahlungsart: Geldkarte. Köln: RGH, 1985.

MLA (9th ed.) Citation

Zellekens, Hermann-Josef, and Joachim Fontaine. Zahlungsart: Geldkarte. RGH, 1985.

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