Wiora, W. the Origins of German spiritual folk song. Ethnomusicology : journal of the Society for Ethnomusicology.
Citazione stile Chigago Style (17a edizione)Wiora, Walter. "The Origins of German Spiritual Folk Song." Ethnomusicology : Journal of the Society for Ethnomusicology .
Citatione MLA (9a ed.)Wiora, Walter. "The Origins of German Spiritual Folk Song." Ethnomusicology : Journal of the Society for Ethnomusicology, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.