APA (7th ed.) Citation

Knight, C., & Butler, A. (2004). Civilization one: The world is not as you thought it was. Watkins Publ.

Chicago Style (17th ed.) Citation

Knight, Christopher, and Alan Butler. Civilization One: The World Is Not as You Thought It Was. London: Watkins Publ, 2004.

MLA (9th ed.) Citation

Knight, Christopher, and Alan Butler. Civilization One: The World Is Not as You Thought It Was. Watkins Publ, 2004.

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