Cita APA (7a ed.)
Garret, W. E. National Geographic: Vol. 169, no. 1, January 1986. National Geographic Society.
Cita estilo Chicago (17a ed.)
Garret, Wilbur E. National Geographic: Vol. 169, No. 1, January 1986. Washington, EUA: National Geographic Society.
Cita MLA (9a ed.)
Garret, Wilbur E. National Geographic: Vol. 169, No. 1, January 1986. National Geographic Society.
Precaución: Estas citas no son 100% exactas.