APA (7th ed.) Citation

Norden, G. v., & Norden, G. v. .

Chicago Style (17th ed.) Citation

Norden, Günther van, and Günter van Norden. .

MLA (9th ed.) Citation

Norden, Günther van, and Günter van Norden. .

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