North Atlantic Treaty Organization. Information Service. (1971). NATO facts and figures.
Chicago (17e ed.) BronvermeldingNorth Atlantic Treaty Organization. Information Service. NATO Facts and Figures. Brussels, 1971.
MLA (9e ed.) BronvermeldingNorth Atlantic Treaty Organization. Information Service. NATO Facts and Figures. 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.