Dyfyniad APA

WHO. (1998). Polybrominated Bibonzo-p-doixins and Dibenzofurans. World Health Organisation.

Dyfyniad Arddull Chicago

WHO. Polybrominated Bibonzo-p-doixins and Dibenzofurans. GEneva: World Health Organisation, 1998.

Dyfyniad MLA

WHO. Polybrominated Bibonzo-p-doixins and Dibenzofurans. World Health Organisation, 1998.

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