Sawyer, R. K. (2005). Social emergence: Societies as complex systems. Cambridge University Press.
Dyfyniad Arddull ChicagoSawyer, R. Keith. Social Emergence: Societies as Complex Systems. New York: Cambridge University Press, 2005.
Dyfyniad MLASawyer, R. Keith. Social Emergence: Societies as Complex Systems. Cambridge University Press, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.