Cita APA (7a ed.)

Vigness, P. G. (1932). The neutrality of Norway in the World War. Oxford University Press.

Cita Chicago Style (17a ed.)

Vigness, Paul G. The Neutrality of Norway in the World War. New York: Oxford University Press, 1932.

Cita MLA (9a ed.)

Vigness, Paul G. The Neutrality of Norway in the World War. Oxford University Press, 1932.