APA-referens

Lewis, A. W. (1989). Principles of economic planning: A study of prepared for the Fabians society.

Chicago-stil citat

Lewis, Arthur W. Principles of Economic Planning: A Study of Prepared for the Fabians Society. Unwin University Books, London, 1989.

MLA-referens

Lewis, Arthur W. Principles of Economic Planning: A Study of Prepared for the Fabians Society. 1989.