APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.