APA (7th ed.) Citation
Williamson, T. (2010). The origins of Hertfordshire. Hertfordshire Publications.
Chicago Style (17th ed.) Citation
Williamson, Tom. The Origins of Hertfordshire. Hatfield, Hertfordshire: Hertfordshire Publications, 2010.
MLA (9th ed.) Citation
Williamson, Tom. The Origins of Hertfordshire. Hertfordshire Publications, 2010.
Warning: These citations may not always be 100% accurate.