Barratt Brown, M. (1974). The economics of imperialism. Penguin Books.
Dyfyniad Arddull ChicagoBarratt Brown, Michael. The Economics of Imperialism. Middlesex, England: Penguin Books, 1974.
Dyfyniad MLABarratt Brown, Michael. The Economics of Imperialism. Penguin Books, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.