Dyfyniad APA

Barratt Brown, M. (1974). The economics of imperialism. Penguin Education.

Dyfyniad Arddull Chicago

Barratt Brown, Michael. The Economics of Imperialism. Harmondsworth: Penguin Education, 1974.

Dyfyniad MLA

Barratt Brown, Michael. The Economics of Imperialism. Penguin Education, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.