Beyer, H. O. History and ethnography of the Ifugao people: A collection of original sources. Microreproduction Dept., Harvard University Library.
Lua i Stíl Chicago (17ú heag.)Beyer, Henry Otley. History and Ethnography of the Ifugao People: A Collection of Original Sources. Cambridge, Mass: Microreproduction Dept., Harvard University Library.
Lua MLA (9ú heag.)Beyer, Henry Otley. History and Ethnography of the Ifugao People: A Collection of Original Sources. Microreproduction Dept., Harvard University Library.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.