Não informado. (1959). Geodesy and Cartography. American Geophysical Union.
Chicago (17e ed.) BronvermeldingNão informado. Geodesy and Cartography. Washington: American Geophysical Union, 1959.
MLA (8e ed.) BronvermeldingNão informado. Geodesy and Cartography. American Geophysical Union, 1959.
Let op: Deze citaties zijn niet altijd 100% accuraat.