APA (7th ed.) Citation

Welsh, F. (2003). The Four nations: A history of the United Kingdom. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Welsh, Frank. The Four Nations: A History of the United Kingdom. London: HarperCollins Publishers, 2003.

MLA (9th ed.) Citation

Welsh, Frank. The Four Nations: A History of the United Kingdom. HarperCollins Publishers, 2003.

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