APA (7th ed.) Citation

Various. (2014). Christmas Carols and Midsummer Songs. Project Gutenberg.

Chicago Style (17th ed.) Citation

Various. Christmas Carols and Midsummer Songs. Project Gutenberg, 2014.

MLA (9th ed.) Citation

Various. Christmas Carols and Midsummer Songs. Project Gutenberg, 2014.

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