APA (7th ed.) Citation

McCullagh, F. (1911). The separation of Church and State in Portugal.

Chicago Style (17th ed.) Citation

McCullagh, Francis. The Separation of Church and State in Portugal. 1911.

MLA (9th ed.) Citation

McCullagh, Francis. The Separation of Church and State in Portugal. 1911.

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