Dyfyniad APA
Birch, A. H. (1998). The British system of government (10th ed.). Routledge.
Dyfyniad Arddull Chicago
Birch, Anthony Harold. The British System of Government. 10th ed. London ; New York: Routledge, 1998.
Dyfyniad MLA
Birch, Anthony Harold. The British System of Government. 10th ed. Routledge, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.