APA (7th ed.) Citation

Harris, R. (1986). The origin of writing / Roy Harris. Duckworth.

Chicago Style (17th ed.) Citation

Harris, Roy. The Origin of Writing / Roy Harris. London: Duckworth, 1986.

MLA (9th ed.) Citation

Harris, Roy. The Origin of Writing / Roy Harris. Duckworth, 1986.

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