APA(7版)引用形式

Não informado. (1970). Working paper series. National Bureau of Economic Research.

Chicagoスタイル(17版)引用形式

Não informado. Working Paper Series. Cambridge, Mass: National Bureau of Economic Research, 1970.

MLA(8版)引用形式

Não informado. Working Paper Series. National Bureau of Economic Research, 1970.

警告: この引用は必ずしも正確ではありません.