APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.