Cita APA (7th ed.)
ebrary, Inc. (2006). Defending the U.S. air transportation system against chemical and biological threats. National Academies Press.
Cita Chicago (17th ed.)
ebrary, Inc. Defending the U.S. Air Transportation System Against Chemical and Biological Threats. Washington, D.C.: National Academies Press, 2006.
Cita MLA (9th ed.)
ebrary, Inc. Defending the U.S. Air Transportation System Against Chemical and Biological Threats. National Academies Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.