APA (7th ed.) Citation

Wright, M. O., Kinney, T., & Kinney, M. W. (2012). Poppea of the Post-Office. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wright, Mabel Osgood, Troy Kinney, and Margaret West Kinney. Poppea of the Post-Office. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Wright, Mabel Osgood, et al. Poppea of the Post-Office. Project Gutenberg, 2012.

Warning: These citations may not always be 100% accurate.