APA aipamena

Helberger, N. (2005). Controlling access to content: Regulating conditional access in digital broadcasting. Kluwer law international.

Chicago Style aipamena

Helberger, Natali. Controlling Access to Content: Regulating Conditional Access in Digital Broadcasting. Netherlands: Kluwer law international, 2005.

MLA aipamena

Helberger, Natali. Controlling Access to Content: Regulating Conditional Access in Digital Broadcasting. Kluwer law international, 2005.

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