APA (7th ed.) Citation

Twain, M., Branch, E. M., Hirst, R. H., & Smith, H. E. (1979). Early tales & sketches. Published for the Iowa Center for Textual Studies by the University of California Press.

Chicago Style (17th ed.) Citation

Twain, Mark, Edgar Marquess Branch, Robert H. Hirst, and Harriet Elinor Smith. Early Tales & Sketches. Berkeley: Published for the Iowa Center for Textual Studies by the University of California Press, 1979.

MLA (9th ed.) Citation

Twain, Mark, et al. Early Tales & Sketches. Published for the Iowa Center for Textual Studies by the University of California Press, 1979.