Hillstrom, K. (2012). The September 11 terrorist attacks. Omnigraphics.
Cita Chicago Style (17a ed.)Hillstrom, Kevin. The September 11 Terrorist Attacks. Detroit, Mich.: Omnigraphics, 2012.
Cita MLA (9a ed.)Hillstrom, Kevin. The September 11 Terrorist Attacks. Omnigraphics, 2012.
Precaución: Estas citas no son 100% exactas.