Dyfyniad APA

(2004). The international year book and stateman's who's who (51th ed.). Cambridge Scientific Abstract.

Dyfyniad Arddull Chicago

The International Year Book and Stateman's Who's Who. 51th ed. West Sussex: Cambridge Scientific Abstract, 2004.

Dyfyniad MLA

The International Year Book and Stateman's Who's Who. 51th ed. Cambridge Scientific Abstract, 2004.

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