Dyfyniad APA

Youngson, A. J. (1972). Economic development in the long run. London: Allen and Unwin.

Dyfyniad Arddull Chicago

Youngson, A. J. Economic Development in the Long Run. London: Allen and Unwin, 1972.

Dyfyniad MLA

Youngson, A. J. Economic Development in the Long Run. London: Allen and Unwin, 1972.

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