HUDSON, W. J. (1993). Intellectual capital: How to built it, enhance it, use it. John Wiley.
Lua i Stíl Chicago (17ú heag.)HUDSON, William J. Intellectual Capital: How to Built It, Enhance It, Use It. New York: John Wiley, 1993.
Lua MLA (9ú heag.)HUDSON, William J. Intellectual Capital: How to Built It, Enhance It, Use It. John Wiley, 1993.
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