APA (7th ed.) Citation

Armour, W. S. (1938). Ulster, Ireland, Britain: A forgotten trust. Duckworth.

Chicago Style (17th ed.) Citation

Armour, W. S. Ulster, Ireland, Britain: A Forgotten Trust. London: Duckworth, 1938.

MLA (9th ed.) Citation

Armour, W. S. Ulster, Ireland, Britain: A Forgotten Trust. Duckworth, 1938.

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