Cita APA (7a ed.)

Hallberg, C. W. (1931). The suez canal. Columbia University Press.

Cita Chicago Style (17a ed.)

Hallberg, Charles W. The Suez Canal. New York: Columbia University Press, 1931.

Cita MLA (8a ed.)

Hallberg, Charles W. The Suez Canal. Columbia University Press, 1931.