The Flag Research Center Lexington. (1971). Flags of all nations. Brown & Ferguson.
Cita Chicago (17th ed.)The Flag Research Center Lexington. Flags of All Nations. Glasgow: Brown & Ferguson, 1971.
Cita MLA (8th ed.)The Flag Research Center Lexington. Flags of All Nations. Brown & Ferguson, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.