APA (7th ed.) Citation

Wells, H. G., Lankester, E. R., Johnston, H., Barker, E., & Murray, G. (2014). The Outline of History: Being a Plain History of Life and Mankind. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wells, H. G., E. Ray Lankester, H.H Johnston, Ernest Barker, and Gilbert Murray. The Outline of History: Being a Plain History of Life and Mankind. Project Gutenberg, 2014.

MLA (9th ed.) Citation

Wells, H. G., et al. The Outline of History: Being a Plain History of Life and Mankind. Project Gutenberg, 2014.

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