Wood, R. C. (1972). Necassary Majority: Middle America and the Urban Crisis. Columbia University Press.
Dyfyniad Arddull ChicagoWood, Robert C. Necassary Majority: Middle America and the Urban Crisis. New York: Columbia University Press, 1972.
Dyfyniad MLAWood, Robert C. Necassary Majority: Middle America and the Urban Crisis. Columbia University Press, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.