APA (7th ed.) Citation

Grossmith, G., & Grossmith, W. (2019). The diary of a nobody (New edition.). Macmillan Collector's Library.

Chicago Style (17th ed.) Citation

Grossmith, George, and Weedon Grossmith. The Diary of a Nobody. New edition. London: Macmillan Collector's Library, 2019.

MLA (9th ed.) Citation

Grossmith, George, and Weedon Grossmith. The Diary of a Nobody. New edition. Macmillan Collector's Library, 2019.