APA (7th ed.) Citation

Underwood, A. S. (2008). The Story of a Robin. Project Gutenberg.

Chicago Style (17th ed.) Citation

Underwood, Agnes S. The Story of a Robin. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Underwood, Agnes S. The Story of a Robin. Project Gutenberg, 2008.

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