APA (7th ed.) Citation

Carey, F. P. (1939). Knock and its shrine (3rd ed.). Office of the "Irish Messenger".

Chicago Style (17th ed.) Citation

Carey, F. P. Knock and Its Shrine. 3rd ed. Dublin: Office of the "Irish Messenger", 1939.

MLA (8th ed.) Citation

Carey, F. P. Knock and Its Shrine. 3rd ed. Office of the "Irish Messenger", 1939.

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