Cita APA (7th ed.)
Twain, M., Smith, H. E., & Griffin, B. (2010). Autobiography of Mark Twain. University of California Press.
Cita Chicago (17th ed.)
Twain, Mark, Harriet Elinor Smith, i Benjamin Griffin. Autobiography of Mark Twain. Berkeley: University of California Press, 2010.
Cita MLA (9th ed.)
Twain, Mark, et al. Autobiography of Mark Twain. University of California Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.