APA-čujuhus (7. p.)
Eberhard Becker, W. B. Digital Rights Management: Technological, Economic, Legal and Political Aspects. Springer.
Chicago-čujuhus (17. p.)
Eberhard Becker, Willms Buhse. Digital Rights Management: Technological, Economic, Legal and Political Aspects. Berlín, Alemania: Springer.
MLA-čujuhus (9. p.)
Eberhard Becker, Willms Buhse. Digital Rights Management: Technological, Economic, Legal and Political Aspects. Springer.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.