Quezon, M. L. The Philippine islands: What they are and what they would be.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रQuezon, Manuel L. The Philippine Islands: What They Are and What They Would Be.
एमएलए (9वां संस्करण) प्रशस्ति पत्रQuezon, Manuel L. The Philippine Islands: What They Are and What They Would Be.
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