Worcester, D. A. (1969). Pecuniary and technological externality, factor rents and social costs. Institute of Economic Development and Research, University of the Philippines.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorcester, Dean Amory. Pecuniary and Technological Externality, Factor Rents and Social Costs. Quezon City: Institute of Economic Development and Research, University of the Philippines, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWorcester, Dean Amory. Pecuniary and Technological Externality, Factor Rents and Social Costs. Institute of Economic Development and Research, University of the Philippines, 1969.
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