Evans, I. O. (1966). The observer's book of flags: By I.O. Evans (Rev. ed.). Warne.
Lua i Stíl Chicago (17ú heag.)Evans, Idrisyn Oliver. The Observer's Book of Flags: By I.O. Evans. Rev. ed. London [u.a.]: Warne, 1966.
Lua MLA (8ú heag.)Evans, Idrisyn Oliver. The Observer's Book of Flags: By I.O. Evans. Rev. ed. Warne, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.