Não informado. (1964). IBP news. International Council of Scientific Unions, Special Committee for the International Biological Programme.
Chicagoスタイル(17版)引用形式Não informado. IBP News. London: International Council of Scientific Unions, Special Committee for the International Biological Programme, 1964.
MLA(8版)引用形式Não informado. IBP News. International Council of Scientific Unions, Special Committee for the International Biological Programme, 1964.
警告: この引用は必ずしも正確ではありません.