Cita APA (7a ed.)

Wells, H. G. (1937). A short history of the world. Penguin Books.

Cita Chicago Style (17a ed.)

Wells, H. G. A Short History of the World. Harmondsworth: Penguin Books, 1937.

Cita MLA (9a ed.)

Wells, H. G. A Short History of the World. Penguin Books, 1937.