Gill et al. 2010, p. 778. Gill, Nicholas; Greenspan, Eliot; O'Malley, Charlie; Pashby, Christie; Perilla, Jisel; Schlecht, Neil E.; Blore, Shawn; de Vries, Alexandra (2010-06-28). Frommer's South America. John Wiley & Sons. ISBN978-0-470-59155-0. Retrieved 2012-08-30.
Gill et al. 2010, p. 782. Gill, Nicholas; Greenspan, Eliot; O'Malley, Charlie; Pashby, Christie; Perilla, Jisel; Schlecht, Neil E.; Blore, Shawn; de Vries, Alexandra (2010-06-28). Frommer's South America. John Wiley & Sons. ISBN978-0-470-59155-0. Retrieved 2012-08-30.