Shapiro, C., & Varian, H. R. (1999). Information rules: A strategic guide to the network economy. Harvard Business School Press.
Chicago-viite (17. p.)Shapiro, Carl, ja Hal R. Varian. Information Rules: A Strategic Guide to the Network Economy. Boston, Massachusetts: Harvard Business School Press, 1999.
MLA-viite (9. p.)Shapiro, Carl, ja Hal R. Varian. Information Rules: A Strategic Guide to the Network Economy. Harvard Business School Press, 1999.
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