Dyfyniad APA

Birch, A. H. (1970). British system of government (2nd. ed.). George Allen & Unwin.

Dyfyniad Arddull Chicago

Birch, A. H. British System of Government. 2nd. ed. George Allen & Unwin, 1970.

Dyfyniad MLA

Birch, A. H. British System of Government. 2nd. ed. George Allen & Unwin, 1970.

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