Lewis, W. A. (1952). The principles of economic planning: A study prepared for the Fabian Society (New ed., with a new introd.). Unwin University Books.
Citace podle Chicago (17th ed.)Lewis, W. Arthur. The Principles of Economic Planning: A Study Prepared for the Fabian Society. New ed., with a new introd. London: Unwin University Books, 1952.
Citace podle MLA (8th ed.)Lewis, W. Arthur. The Principles of Economic Planning: A Study Prepared for the Fabian Society. New ed., with a new introd. Unwin University Books, 1952.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..