Citazione Stile APA (7a Edizione)

(1961). Flags of all nations. Her Majesty's Stationery Office.

Citazione stile Chigago Style (17a edizione)

Flags of All Nations. [S.l.]: Her Majesty's Stationery Office, 1961.

Citatione MLA (9a ed.)

Flags of All Nations. Her Majesty's Stationery Office, 1961.