APA (7th ed.) Citation

Hümpfner, W., & Henricus, d. F. (1914). Heinrich von Friemar.

Chicago Style (17th ed.) Citation

Hümpfner, Winfried, and de Frimaria Henricus. Heinrich Von Friemar. 1914.

MLA (9th ed.) Citation

Hümpfner, Winfried, and de Frimaria Henricus. Heinrich Von Friemar. 1914.

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