Williamson, O. E., & Winter, S. G. (1993). The Nature of the firm: Origins, evolution, and development. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Williamson, Oliver E., agus Sidney G. Winter. The Nature of the Firm: Origins, Evolution, and Development. New York, N.Y: Oxford University Press, 1993.
Lua MLA (9ú heag.)Williamson, Oliver E., agus Sidney G. Winter. The Nature of the Firm: Origins, Evolution, and Development. Oxford University Press, 1993.
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