Não informado. (1958). IGY general report. International Geophysical Year.
Style de citation Chicago (17e éd.)Não informado. IGY General Report. Washington: International Geophysical Year, 1958.
Style de citation MLA (8e éd.)Não informado. IGY General Report. International Geophysical Year, 1958.
Attention : ces citations peuvent ne pas être correctes à 100%.