APA (7th ed.) Citation

Fack, F. U., & Fack, F. U. .

Chicago Style (17th ed.) Citation

Fack, Fritz Ullrich, and Fritz Ulrich Fack. .

MLA (9th ed.) Citation

Fack, Fritz Ullrich, and Fritz Ulrich Fack. .

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