Lua APA (7ú heag.)

Blum, A. (2012). Tubes: Behind the scenes at the Internet (NA.). Penguin Books.

Lua i Stíl Chicago (17ú heag.)

Blum, Andrew. Tubes: Behind the Scenes at the Internet. NA. New York: Penguin Books, 2012.

Lua MLA (9ú heag.)

Blum, Andrew. Tubes: Behind the Scenes at the Internet. NA. Penguin Books, 2012.

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