APA (7th ed.) Citation

Lewis, W. A. (1963). The principles of economic planning. Unwin Un.Books.

Chicago Style (17th ed.) Citation

Lewis, W. Arthur. The Principles of Economic Planning. Unwin Un.Books, 1963.

MLA (8th ed.) Citation

Lewis, W. Arthur. The Principles of Economic Planning. Unwin Un.Books, 1963.

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