Sellekaerts, W. (1974). Economic development and planning: Essays in honour of Jan Tinbergen. Macmillan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSellekaerts, Willy. Economic Development and Planning: Essays in Honour of Jan Tinbergen. Macmillan, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSellekaerts, Willy. Economic Development and Planning: Essays in Honour of Jan Tinbergen. Macmillan, 1974.
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