APA (7th ed.) Citation

Seppelt, F. X., & Schwaiger, G. (1964). Geschichte der Päpste. Kösel.

Chicago Style (17th ed.) Citation

Seppelt, Franz Xaver, and Georg Schwaiger. Geschichte Der Päpste. München: Kösel, 1964.

MLA (9th ed.) Citation

Seppelt, Franz Xaver, and Georg Schwaiger. Geschichte Der Päpste. Kösel, 1964.

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