Baer, M. (2005). Safe: The race to protect ourselves in a newly dangerous world. HarperCollins.
Cita Chicago Style (17a ed.)Baer, Martha. Safe: The Race to Protect Ourselves in a Newly Dangerous World. New York, NY: HarperCollins, 2005.
Cita MLA (8a ed.)Baer, Martha. Safe: The Race to Protect Ourselves in a Newly Dangerous World. HarperCollins, 2005.
Precaución: Estas citas no son 100% exactas.