APA (7th ed.) Citation

Roscher, W. G. F., & Wolowski, L. F. M. R. (1882). Principles of political economy. Callaghan.

Chicago Style (17th ed.) Citation

Roscher, Wilhelm Georg Friedrich, and Louis Francois Michel Raymond Wolowski. Principles of Political Economy. Chicago: Callaghan, 1882.

MLA (9th ed.) Citation

Roscher, Wilhelm Georg Friedrich, and Louis Francois Michel Raymond Wolowski. Principles of Political Economy. Callaghan, 1882.