APA
Shapiro C., Varian H. R., . (1999). Information Rules: A Strategic Guide to the Network Economy. : Harvard Business School Press.
Chicago
Shapiro Carl, Varian Hal R, . 1999. Information Rules: A Strategic Guide to the Network Economy. : Harvard Business School Press.
Harvard
Shapiro C., Varian H. R., . (1999). Information Rules: A Strategic Guide to the Network Economy. : Harvard Business School Press.
MLA
Shapiro Carl, Varian Hal R, . Information Rules: A Strategic Guide to the Network Economy. : Harvard Business School Press. 1999.