APA-čujuhus (7. p.)
Siegel, D. Futurize your enterprise: Business strategy in the age of the e-customer. Wiley.
Chicago-čujuhus (17. p.)
Siegel, David. Futurize Your Enterprise: Business Strategy in the Age of the E-customer. Nueva York, EUA: Wiley.
MLA-čujuhus (9. p.)
Siegel, David. Futurize Your Enterprise: Business Strategy in the Age of the E-customer. Wiley.
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