APA (7th ed.) Citation

Leighton, R. The Thirsty Sword: A Story of the Norse Invasion of Scotland (1262-1263).

Chicago Style (17th ed.) Citation

Leighton, Robert. The Thirsty Sword: A Story of the Norse Invasion of Scotland (1262-1263).

MLA (9th ed.) Citation

Leighton, Robert. The Thirsty Sword: A Story of the Norse Invasion of Scotland (1262-1263).

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