APA (7th ed.) Citation

Stubbs, J. O. (1990). The Unionists and Ireland: 1914 - 18. The historical journal.

Chicago Style (17th ed.) Citation

Stubbs, John O. "The Unionists and Ireland: 1914 - 18." The Historical Journal 1990.

MLA (8th ed.) Citation

Stubbs, John O. "The Unionists and Ireland: 1914 - 18." The Historical Journal, 1990.

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