Worcester, D. C. (1913). The Non-Christian Peoples of The Philippine Islands. National Geographic Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorcester, Dean C. The Non-Christian Peoples of The Philippine Islands. [Washington, DC: National Geographic Society, 1913.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWorcester, Dean C. The Non-Christian Peoples of The Philippine Islands. National Geographic Society, 1913.
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