APA (7th ed.) Citation

Lewis, W. A. (1969). The principles of economic planning / by W.A. Lewis (3rd ed.). Allen and Unwin.

Chicago Style (17th ed.) Citation

Lewis, W. Arthur. The Principles of Economic Planning / by W.A. Lewis. 3rd ed. Allen and Unwin, 1969.

MLA (9th ed.) Citation

Lewis, W. Arthur. The Principles of Economic Planning / by W.A. Lewis. 3rd ed. Allen and Unwin, 1969.

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