Original: Complete score. Das Orgel-Büchlein, BWV 599-644. Vom Himmel hoch, da komm ich her, BWV 606. SATB. For 4 Recorders. Kuipers.
Translation: The Organ Booklet, BWV 599-644. Vom Himmel hoch, where I'm from, BWV 606. Arrangements and Transcriptions. Bach, Johann Sebastian.