APA (7th ed.) Citation

Bach, J. S. Christmas cantata, Christians, engrave ye this day! The Bach Guild BG 518.

Chicago Style (17th ed.) Citation

Bach, Johann Sebastian. Christmas Cantata, Christians, Engrave Ye This Day! s.l: The Bach Guild BG 518.

MLA (9th ed.) Citation

Bach, Johann Sebastian. Christmas Cantata, Christians, Engrave Ye This Day! The Bach Guild BG 518.

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