APA (7th ed.) Citation

Hefele, F. (1940). Freiburger Urkundenbuch. Wagner.

Chicago Style (17th ed.) Citation

Hefele, Friedrich. Freiburger Urkundenbuch. Freiburg i. Br: Wagner, 1940.

MLA (9th ed.) Citation

Hefele, Friedrich. Freiburger Urkundenbuch. Wagner, 1940.

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