Engel, M. (2013). What should go on the internet: Privacy, freedom, and security online (Updated edition.). National Issues Forums Institute.
Chicago-Zitierstil (17. Ausg.)Engel, Mary. What Should Go on the Internet: Privacy, Freedom, and Security Online. Updated edition. [Dayton, Ohio]: National Issues Forums Institute, 2013.
MLA-Zitierstil (9. Ausg.)Engel, Mary. What Should Go on the Internet: Privacy, Freedom, and Security Online. Updated edition. National Issues Forums Institute, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.