Crampton, W. G. (1986). The new observer's book of flags: William G. Crampton (New, rev. ed.). Warne.

Crampton, William G. The New Observer's Book of Flags: William G. Crampton. New, rev. ed. Harmondsworth: Warne, 1986.

Crampton, William G. The New Observer's Book of Flags: William G. Crampton. New, rev. ed. Warne, 1986.