APA-referens (7:e uppl.)

Clark, C. (1926). The flag of England, its history and the flags of the Empire: By Cumberland Clark, F.Z.S., F.R.A.S. Wass, Pritchard & Co..

Chicago-referens (17:e uppl.)

Clark, Cumberland. The Flag of England, Its History and the Flags of the Empire: By Cumberland Clark, F.Z.S., F.R.A.S. London: Wass, Pritchard & Co., 1926.

MLA-referens (8:e uppl.)

Clark, Cumberland. The Flag of England, Its History and the Flags of the Empire: By Cumberland Clark, F.Z.S., F.R.A.S. Wass, Pritchard & Co., 1926.