APA (7th ed.) Citation

Smith,Monica L, & Cavanaugh, M. (2020). Cities: The first 6,000 years. Penguin Books.

Chicago Style (17th ed.) Citation

Smith,Monica L, and Meighan Cavanaugh. Cities: The First 6,000 Years. New York: Penguin Books, 2020.

MLA (9th ed.) Citation

Smith,Monica L, and Meighan Cavanaugh. Cities: The First 6,000 Years. Penguin Books, 2020.