APA (7th ed.) Citation

Mason, A. E. W. (2012). The Affair at the Semiramis Hotel. Project Gutenberg.

Chicago Style (17th ed.) Citation

Mason, A. E. W. The Affair at the Semiramis Hotel. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Mason, A. E. W. The Affair at the Semiramis Hotel. Project Gutenberg, 2012.

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