APA (7th ed.) Citation

Mendelssohn, F. (2006). Hark! The Herald Angels Sing. Project Gutenberg.

Chicago Style (17th ed.) Citation

Mendelssohn, Felix. Hark! The Herald Angels Sing. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Mendelssohn, Felix. Hark! The Herald Angels Sing. Project Gutenberg, 2006.

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