Παραπομπή APA

Lewis, W. A., & Fabian Society (Great Britain). (1969). The principles of economic planning: A study prepared for the Fabian Society (3rd ed.). London: Allen & Unwin.

Παραπομπή Chicago Style

Lewis, William Arthur, and Fabian Society (Great Britain). The Principles of Economic Planning: A Study Prepared for the Fabian Society. 3rd ed. London: Allen & Unwin, 1969.

Παραπομπή MLA

Lewis, William Arthur, and Fabian Society (Great Britain). The Principles of Economic Planning: A Study Prepared for the Fabian Society. 3rd ed. London: Allen & Unwin, 1969.

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