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Alice Cullina, autora de ClassicNote. Completado el 20 de agosto en 2009, copyright en poder de GradeSaver.
Actualizado y revisado por Damien Chazelle el noviembre 30 de 2009. copyright en poder de GradeSaver.
"About Jon Krakauer." Random House. 2009-08-09.
<http://www.randomhouse.com/features/krakauer/author.html>.Karlinsky, Neal. "Into the Wild inspires adventurers, but at what cost?." ABC News: Nightline. 2007-10-15. 2009-08-08. <http://abcnews.go.com/Nightline/Story?id=3680748&page=1>.
Krakauer, Jon, "Death of an Innocent." https://www.hudson.k12.oh.us/cms/lib/OH01914911/Centricity/Domain/1167/Krakauer%20article%20McCandless.pdf
Andriani, Lynn. "Krakauer's Tillman Book Due in September." Publishers Weekly. 2009-02-09. 2009-08-13.
<http://www.publishersweekly.com/article/CA6636050.html>.Bryson, George. "Theories Differ on the Cause of McCandless's Death." Anchorage Daily News. 2007-10-08.
2009-08-11. <http://www.adn.com/intothewild/story/219344.html>.