APA (7th ed.) Citation

Gordon, R., & Williams, B. (2008). TÚNELES. Contenido, 539, 112.

Chicago Style (17th ed.) Citation

Gordon, Roderick, and Brian Williams. "TÚNELES." Contenido 539 (2008): 112.

MLA (9th ed.) Citation

Gordon, Roderick, and Brian Williams. "TÚNELES." Contenido, 539, 2008, p. 112.

Warning: These citations may not always be 100% accurate.