Dyfyniad APA

Freeman, C. (1983). Longwaves in the world economy. London: Butterworths.

Dyfyniad Arddull Chicago

Freeman, Christopher. Longwaves in the World Economy. London: Butterworths, 1983.

Dyfyniad MLA

Freeman, Christopher. Longwaves in the World Economy. London: Butterworths, 1983.

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