Kostigen, T. (2014). National Geographic extreme weather survival guide: Understand, prepare, survive, recover. National Geographic.
Cita Chicago Style (17a ed.)Kostigen, Thomas. National Geographic Extreme Weather Survival Guide: Understand, Prepare, Survive, Recover. Washington, D.C.: National Geographic, 2014.
Cita MLA (8a ed.)Kostigen, Thomas. National Geographic Extreme Weather Survival Guide: Understand, Prepare, Survive, Recover. National Geographic, 2014.
Precaución: Estas citas no son 100% exactas.