Lewis,Ben W. (1952). British planning and nationalization. The Twentieth Century Fund.
Dyfyniad Arddull ChicagoLewis,Ben W. British Planning and Nationalization. New York: The Twentieth Century Fund, 1952.
Dyfyniad MLALewis,Ben W. British Planning and Nationalization. The Twentieth Century Fund, 1952.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.