APA (7th ed.) Citation

Wells, H. G., & Postgate, R. (1951). The outline of history: Being a plain history of life and mankind (Rev. ed.). Cassell.

Chicago Style (17th ed.) Citation

Wells, H. G., and Raymond Postgate. The Outline of History: Being a Plain History of Life and Mankind. Rev. ed. London: Cassell, 1951.

MLA (8th ed.) Citation

Wells, H. G., and Raymond Postgate. The Outline of History: Being a Plain History of Life and Mankind. Rev. ed. Cassell, 1951.