Thien-Huong, C. D., & Franch Bullich, J. (2014). National Geographic: The Digital Challenge.
Cita Chicago Style (17a ed.)Thien-Huong, Christine Dinh, y Josep Franch Bullich. National Geographic: The Digital Challenge. 2014.
Cita MLA (9a ed.)Thien-Huong, Christine Dinh, y Josep Franch Bullich. National Geographic: The Digital Challenge. 2014.
Precaución: Estas citas no son 100% exactas.
