APA (7th ed.) Citation

Hudson, W. H. (2005). Birds in Town and Village. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hudson, W. H. Birds in Town and Village. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Hudson, W. H. Birds in Town and Village. Project Gutenberg, 2005.

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