APA (7th ed.) Citation

Wallace, E. (2007). The Daffodil Mystery. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wallace, Edgar. The Daffodil Mystery. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Wallace, Edgar. The Daffodil Mystery. Project Gutenberg, 2007.

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