APA (7th ed.) Citation

(2013). A Picture-book of Merry Tales. Project Gutenberg.

Chicago Style (17th ed.) Citation

A Picture-book of Merry Tales. Project Gutenberg, 2013.

MLA (9th ed.) Citation

A Picture-book of Merry Tales. Project Gutenberg, 2013.

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