APA (7th ed.) Citation

George & Grossmith, W. (1995). The Diary of a Nobody. Penguin Books.

Chicago Style (17th ed.) Citation

George and Weedon Grossmith. The Diary of a Nobody. England: Penguin Books, 1995.

MLA (9th ed.) Citation

George and Weedon Grossmith. The Diary of a Nobody. Penguin Books, 1995.

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