APA (7th ed.) Citation

O'Hegarty, P. S. The indestructible nation: A survey of Irish history from the English invasion.

Chicago Style (17th ed.) Citation

O'Hegarty, P. S. The Indestructible Nation: A Survey of Irish History from the English Invasion. Dublin : Maunsel, 1918.

MLA (8th ed.) Citation

O'Hegarty, P. S. The Indestructible Nation: A Survey of Irish History from the English Invasion.

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