APA (7th ed.) Citation

Onions, O. (2013). A Case in Camera. Project Gutenberg.

Chicago Style (17th ed.) Citation

Onions, Oliver. A Case in Camera. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Onions, Oliver. A Case in Camera. Project Gutenberg, 2013.

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