Dyfyniad APA

Federal Reserve Bulletin. Board of Governors of the Federal Reserve System.

Dyfyniad Arddull Chicago

Federal Reserve Bulletin. Board of Governors of the Federal Reserve System.

Dyfyniad MLA

Federal Reserve Bulletin. Board of Governors of the Federal Reserve System.

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