Bale, I. (1960). Trough seven reigns: A history of the Newport Borough Police / by Islwyn Bale. Hughes.
Chicago-referens (17:e uppl.)Bale, Islwyn. Trough Seven Reigns: A History of the Newport Borough Police / by Islwyn Bale. [pontipool]: Hughes, 1960.
MLA-referens (8:e uppl.)Bale, Islwyn. Trough Seven Reigns: A History of the Newport Borough Police / by Islwyn Bale. Hughes, 1960.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.