APA (7th ed.) Citation

Harrison, H. (1939). Ulster and the British empire, 1939: Help or hindrance? A sequel to "Ireland and the British empire, 1937". R. Hale.

Chicago Style (17th ed.) Citation

Harrison, Henry. Ulster and the British Empire, 1939: Help or Hindrance? A Sequel to "Ireland and the British Empire, 1937". London: R. Hale, 1939.

MLA (8th ed.) Citation

Harrison, Henry. Ulster and the British Empire, 1939: Help or Hindrance? A Sequel to "Ireland and the British Empire, 1937". R. Hale, 1939.