Wrigley, E. A. (1987). People, cities and wealth: The transformation of traditional society. Basil Blackwell.
Dyfyniad Arddull ChicagoWrigley, Edward Anthony. People, Cities and Wealth: The Transformation of Traditional Society. Oxford: Basil Blackwell, 1987.
Dyfyniad MLAWrigley, Edward Anthony. People, Cities and Wealth: The Transformation of Traditional Society. Basil Blackwell, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.