APA (7th ed.) Zitazioa
Twain, M., Williams, T., Mullen, f., Smith, H. E., & Branch, E. M. (2011). Roughing it. University of California Press.
Chicago Style (17th ed.) Zitazioa
Twain, Mark, True Williams, fl Mullen, Harriet Elinor Smith, eta Edgar Marquess Branch. Roughing It. Berkeley: University of California Press, 2011.
MLA (9th ed.) Zitazioa
Twain, Mark, et al. Roughing It. University of California Press, 2011.
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