Cita APA (7a ed.)

Wells, H. (1946). A short history of the world. Penguin Books.

Cita Chicago Style (17a ed.)

Wells, H.G. A Short History of the World. New York: Penguin Books, 1946.

Cita MLA (8a ed.)

Wells, H.G. A Short History of the World. Penguin Books, 1946.