Baumol, W. J. (1975). The theory of environmental policy: Externalities, public outlays and the quality of life. Prentice Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBaumol, William J. The Theory of Environmental Policy: Externalities, Public Outlays and the Quality of Life. Englewood Cliffs, New Jersey: Prentice Hall, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBaumol, William J. The Theory of Environmental Policy: Externalities, Public Outlays and the Quality of Life. Prentice Hall, 1975.
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