Cita APA (7th ed.)

Hobson, J. A. (1975). Imperialism: A study. Gordon Press.

Cita Chicago (17th ed.)

Hobson, John Atkinson. Imperialism: A Study. New York: Gordon Press, 1975.

Cita MLA (9th ed.)

Hobson, John Atkinson. Imperialism: A Study. Gordon Press, 1975.