Cita APA (7th ed.)

Pigou, A. C. (1920). The economics of welfare (4th ed.). Macmillan and Co..

Cita Chicago (17th ed.)

Pigou, A. C. The Economics of Welfare. 4th ed. London: Macmillan and Co., 1920.

Cita MLA (9th ed.)

Pigou, A. C. The Economics of Welfare. 4th ed. Macmillan and Co., 1920.