Não informado. (1980). Science of science. Polish Academy of Sciences.
Chicagoスタイル(17版)引用形式Não informado. Science of Science. Wroclaw, Polonia: Polish Academy of Sciences, 1980.
MLA(8版)引用形式Não informado. Science of Science. Polish Academy of Sciences, 1980.
警告: この引用は必ずしも正確ではありません.