APA引文

Pigou, A. C. (1921). The economics of welfare. London: MacMillan and Co, Ltd.

Trích dẫn kiểu Chicago

Pigou, A. C. The Economics of Welfare. London: MacMillan and Co, Ltd, 1921.

MLA引文

Pigou, A. C. The Economics of Welfare. London: MacMillan and Co, Ltd, 1921.

警告：這些引文格式不一定是100％准確.