North, D. C. (1966). Growth and welfare in the American past. Prentice-Hall.
Dyfyniad Arddull ChicagoNorth, Douglass C. Growth and Welfare in the American Past. Prentice-Hall, 1966.
Dyfyniad MLANorth, Douglass C. Growth and Welfare in the American Past. Prentice-Hall, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.