Dyfyniad APA

Journal of the royal town planning institute. Royal Town Planning Institute.

Dyfyniad Arddull Chicago

Journal of the Royal Town Planning Institute. London: Royal Town Planning Institute.

Dyfyniad MLA

Journal of the Royal Town Planning Institute. Royal Town Planning Institute.

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