Barratt Brown, M. (1974). The economics of imperialism. Penguin Education.
Cita Chicago (17th ed.)Barratt Brown, Michael. The Economics of Imperialism. Harmondsworth: Penguin Education, 1974.
Cita MLA (8th ed.)Barratt Brown, Michael. The Economics of Imperialism. Penguin Education, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.