Não informado. (1954). Year book. International Council of Scientific Unions.
Style de citation Chicago (17e éd.)Não informado. Year Book. Miami, Fla: International Council of Scientific Unions, 1954.
Style de citation MLA (8e éd.)Não informado. Year Book. International Council of Scientific Unions, 1954.
Attention : ces citations peuvent ne pas être correctes à 100%.