Wrigley, E. A. (1987). People, cities, and wealth: The transformation of traditional society. Basil Blackwell.
Čikaški stil citiranja (17. izdanje)Wrigley, E. A. People, Cities, and Wealth: The Transformation of Traditional Society. Oxford: Basil Blackwell, 1987.
MLA način citiranja (9. izdanje)Wrigley, E. A. People, Cities, and Wealth: The Transformation of Traditional Society. Basil Blackwell, 1987.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.