Baumol, W. J. (1977). Economic theory and operations analysis (4th ed.). Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBaumol, William J. Economic Theory and Operations Analysis. 4th ed. Englewood Cliffs, N.J. ; New Delhi: Prentice-Hall, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBaumol, William J. Economic Theory and Operations Analysis. 4th ed. Prentice-Hall, 1977.
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