Não informado. (1969). Science policy news. Science Policy Foundation.
Chicagoスタイル(17版)引用形式Não informado. Science Policy News. London: Science Policy Foundation, 1969.
MLA(8版)引用形式Não informado. Science Policy News. Science Policy Foundation, 1969.
警告: この引用は必ずしも正確ではありません.