APA (7th ed.) Citation

Cossa, L., & Dyer, L. (1893). An introduction to the study of political economy. Macmillan and Co..

Chicago Style (17th ed.) Citation

Cossa, Luigi, and Louis Dyer. An Introduction to the Study of Political Economy. London and New York: Macmillan and Co., 1893.

MLA (9th ed.) Citation

Cossa, Luigi, and Louis Dyer. An Introduction to the Study of Political Economy. Macmillan and Co., 1893.