(2002). Stamp honors Opus Dei founder on his centenary. Manila Bulletin.
Chicago-referens (17:e uppl.)"Stamp Honors Opus Dei Founder on His Centenary." Manila Bulletin 2002.
MLA-referens (9:e uppl.)"Stamp Honors Opus Dei Founder on His Centenary." Manila Bulletin, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.