APA (7. basım) Alıntı

Williamson, T. (2010). The origins of Hertfordshire. Hertfordshire Publications.

Chicago Style (17. basım) Atıf

Williamson, Tom. The Origins of Hertfordshire. Hatfield, Hertfordshire: Hertfordshire Publications, 2010.

MLA (9th ed.) Atıf

Williamson, Tom. The Origins of Hertfordshire. Hertfordshire Publications, 2010.