Cita APA (7th ed.)

Hall Gus. (1772). Imperialism Today: An Evaluation of Major Issues and Events of Our Time (4th ed.). International.

Cita Chicago (17th ed.)

Hall Gus. Imperialism Today: An Evaluation of Major Issues and Events of Our Time. 4th ed. New York: International, 1772.

Cita MLA (9th ed.)

Hall Gus. Imperialism Today: An Evaluation of Major Issues and Events of Our Time. 4th ed. International, 1772.