Beyer, H. O. History and ethnography of the Ifugao people: A collection of original sources. Microreproduction Dept., Harvard University Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeyer, Henry Otley. History and Ethnography of the Ifugao People: A Collection of Original Sources. Cambridge, Mass: Microreproduction Dept., Harvard University Library.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBeyer, Henry Otley. History and Ethnography of the Ifugao People: A Collection of Original Sources. Microreproduction Dept., Harvard University Library.
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