(2002). Stamp honors Opus Dei founder on his centenary. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Stamp Honors Opus Dei Founder on His Centenary." Manila Bulletin 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Stamp Honors Opus Dei Founder on His Centenary." Manila Bulletin, 2002.
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