APA引文

Hufschmid, M. (2021). The crusade against the Staufer in Germany, 1246-51.

Chicago Style (17th ed.) Citation

Hufschmid, M. The Crusade Against the Staufer in Germany, 1246-51. 2021.

MLA引文

Hufschmid, M. The Crusade Against the Staufer in Germany, 1246-51. 2021.

警告：這些引文格式不一定是100％准確.