Gaya APA

Lewis, W. Arthur. (1951). The principles of economic planning a study prepared for the Fabian society W. Arthur Lewis (New ed.). London: George Allen & Unwin.

Gaya Chicago

Lewis, W. Arthur. The principles of economic planning a study prepared for the Fabian society W. Arthur Lewis. New ed. London: George Allen & Unwin, 1951. Text.

Gaya MLA

Lewis, W. Arthur. The principles of economic planning a study prepared for the Fabian society W. Arthur Lewis. New ed. London: George Allen & Unwin, 1951. Text.

Gaya Turabian

Lewis, W. Arthur. The principles of economic planning a study prepared for the Fabian society W. Arthur Lewis. New ed. London: George Allen & Unwin, 1951. Print.