APA (7e ed.) Bronvermelding

Krebs, H., & Krebs, S. (2007). Josephine Lang: Her life and songs. Oxford University Press.

Chicago (17e ed.) Bronvermelding

Krebs, Harald, en Sharon Krebs. Josephine Lang: Her Life and Songs. Oxford ; New York: Oxford University Press, 2007.

MLA (9e ed.) Bronvermelding

Krebs, Harald, en Sharon Krebs. Josephine Lang: Her Life and Songs. Oxford University Press, 2007.