Πρωτότυπο: Vox humana. Lucien H. Southard. USA. Organ Solo sheet music. Vox humana. USA. Edited by Juergen Bonn. For organ. This edition.
Μετάφραση: Vox Humana. ΗΠΑ. Organ Solo παρτιτούρες. Vox Humana. ΗΠΑ. Organ compositions by eight North American composers of the 18th to 20th century.