APA (7th ed.) Citation

Gelasius <Cyzicenus> & Hansen, G. C. (2008). [Historia Ecclesiastica, 1]. Brepols Publ..

Chicago Style (17th ed.) Citation

Gelasius <Cyzicenus> and Günther Christian Hansen. [Historia Ecclesiastica, 1]. Turnhout: Brepols Publ., 2008.

MLA (8th ed.) Citation

Gelasius <Cyzicenus> and Günther Christian Hansen. [Historia Ecclesiastica, 1]. Brepols Publ., 2008.