APA引文

Samuelson, P. A. (1989). A case at last for age-phased reduction in equity.

Citação norma Chicago

Samuelson, P A. A Case At Last for Age-phased Reduction in Equity. 1989.

MLA引文

Samuelson, P A. A Case At Last for Age-phased Reduction in Equity. 1989.

警告：這些引文格式不一定是100％准確.