APA (7th ed.) Citation

Perry, A. L. (1891). Principles of political economy. Kegan Paul.

Chicago Style (17th ed.) Citation

Perry, Arthur Latham. Principles of Political Economy. Lond.: Kegan Paul, 1891.

MLA (8th ed.) Citation

Perry, Arthur Latham. Principles of Political Economy. Kegan Paul, 1891.

Warning: These citations may not always be 100% accurate.