Dyfyniad APA

Hartley, K. (1977). Problems of Economic Policy. Allen & Unwin.

Dyfyniad Arddull Chicago

Hartley, Keith. Problems of Economic Policy. London: Allen & Unwin, 1977.

Dyfyniad MLA

Hartley, Keith. Problems of Economic Policy. Allen & Unwin, 1977.

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