Cita APA (7a ed.)

Appel, E. J. (2011). Internet searches for vetting, investigations, and open-source intelligence (1st edition.). CRC Press.

Cita Chicago Style (17a ed.)

Appel, Edward J. Internet Searches for Vetting, Investigations, and Open-source Intelligence. 1st edition. Boca Raton, Fla.: CRC Press, 2011.

Cita MLA (9a ed.)

Appel, Edward J. Internet Searches for Vetting, Investigations, and Open-source Intelligence. 1st edition. CRC Press, 2011.