APA (7th ed.) Citation

Doherty, R. (2004). The thin green line: A history of the Royal Ulster Constabulary GC, 1922 - 2001 (1. publ.). Pen & Sword Military.

Chicago Style (17th ed.) Citation

Doherty, Richard. The Thin Green Line: A History of the Royal Ulster Constabulary GC, 1922 - 2001. 1. publ. Barnsley: Pen & Sword Military, 2004.

MLA (9th ed.) Citation

Doherty, Richard. The Thin Green Line: A History of the Royal Ulster Constabulary GC, 1922 - 2001. 1. publ. Pen & Sword Military, 2004.

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