APA (7th ed.) Citation

Vethake, H. (1971). The principles of political economy (2d ed. 1844.). A. M. Kelley.

Chicago Style (17th ed.) Citation

Vethake, Henry. The Principles of Political Economy. 2d ed. 1844. New York: A. M. Kelley, 1971.

MLA (9th ed.) Citation

Vethake, Henry. The Principles of Political Economy. 2d ed. 1844. A. M. Kelley, 1971.