Dyfyniad APA

(2007). The International directory of government (1st ed. (1990)-.). Europa Publications.

Dyfyniad Arddull Chicago

The International Directory of Government. 1st ed. (1990)-. London: Europa Publications, 2007.

Dyfyniad MLA

The International Directory of Government. 1st ed. (1990)-. Europa Publications, 2007.

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