Philippines. Professional Regulation Commission & Philippine Association of Board Examiners. (2006). e-PRC online@2006: 2006 yearbook. Professional Regulation Commission.
Chicago-referens (17:e uppl.)Philippines. Professional Regulation Commission och Philippine Association of Board Examiners. E-PRC Online@2006: 2006 Yearbook. Manila: Professional Regulation Commission, 2006.
MLA-referens (9:e uppl.)Philippines. Professional Regulation Commission och Philippine Association of Board Examiners. E-PRC Online@2006: 2006 Yearbook. Professional Regulation Commission, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.