APA (7th ed.) Citation

Karmirēs, I. N. (1950). The schism of the Roman Church.

Chicago Style (17th ed.) Citation

Karmirēs, Iōannēs N. The Schism of the Roman Church. Athens, 1950.

MLA (9th ed.) Citation

Karmirēs, Iōannēs N. The Schism of the Roman Church. 1950.

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