APA (7th ed.) Citation

Ritchie, D. G. (1969). The principles of state interference: Four essays on the political philosophy of Mr. Herbert Spencer, J. S. Mill, and T. H. Green. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Ritchie, David George. The Principles of State Interference: Four Essays on the Political Philosophy of Mr. Herbert Spencer, J. S. Mill, and T. H. Green. Freeport, N.Y.: Books for Libraries Press, 1969.

MLA (9th ed.) Citation

Ritchie, David George. The Principles of State Interference: Four Essays on the Political Philosophy of Mr. Herbert Spencer, J. S. Mill, and T. H. Green. Books for Libraries Press, 1969.