Dyfyniad APA

Euromonitor. (1999). World directory of business information web sites 1999 (3rd ed.). Euromonitor.

Dyfyniad Arddull Chicago

Euromonitor. World Directory of Business Information Web Sites 1999. 3rd ed. London: Euromonitor, 1999.

Dyfyniad MLA

Euromonitor. World Directory of Business Information Web Sites 1999. 3rd ed. Euromonitor, 1999.

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