Cita APA (7a ed.)

Koht, H., & Skard, S. (1944). The voice of Norway. Columbia University Press.

Cita Chicago Style (17a ed.)

Koht, Halvdan, y Sigmund Skard. The Voice of Norway. New York: Columbia University Press, 1944.

Cita MLA (9a ed.)

Koht, Halvdan, y Sigmund Skard. The Voice of Norway. Columbia University Press, 1944.