Cita APA (7a ed.)

Greenfield, D. N. a. (1999). Virtual addiction: Help for netheads, cyberfreaks, and those who love them. New Harbinger.

Cita Chicago Style (17a ed.)

Greenfield, David N. autor. Virtual Addiction: Help for Netheads, Cyberfreaks, and Those Who Love Them. Oakland, Calif.: New Harbinger, 1999.

Cita MLA (9a ed.)

Greenfield, David N. autor. Virtual Addiction: Help for Netheads, Cyberfreaks, and Those Who Love Them. New Harbinger, 1999.