Campbell, G., & Evans, I. O. (1953). The book of flags: Gordon Campbell and I.O. Evans (2. Aufl.). Oxford Univ. Press.
Lua i Stíl Chicago (17ú heag.)Campbell, Gordon, agus Idrisyn Oliver Evans. The Book of Flags: Gordon Campbell and I.O. Evans. 2. Aufl. London: Oxford Univ. Press, 1953.
Lua MLA (8ú heag.)Campbell, Gordon, agus Idrisyn Oliver Evans. The Book of Flags: Gordon Campbell and I.O. Evans. 2. Aufl. Oxford Univ. Press, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.