Cita APA (7a ed.)

Bridgwater, W. (1956). The Columbia encyclopedia supplement of illustrations with a record of events 1950-56. Columbia University Press.

Cita Chicago Style (17a ed.)

Bridgwater, William. The Columbia Encyclopedia Supplement of Illustrations with a Record of Events 1950-56. New York: Columbia University Press, 1956.

Cita MLA (9a ed.)

Bridgwater, William. The Columbia Encyclopedia Supplement of Illustrations with a Record of Events 1950-56. Columbia University Press, 1956.