Não informado. (1964). IBP news. International Council of Scientific Unions, Special Committee for the International Biological Programme.
Cita Chicago Style (17a ed.)Não informado. IBP News. London: International Council of Scientific Unions, Special Committee for the International Biological Programme, 1964.
Cita MLA (8a ed.)Não informado. IBP News. International Council of Scientific Unions, Special Committee for the International Biological Programme, 1964.
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