Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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