APA-referens (7:e uppl.)

Beyer, H. O. History and ethnography of the Ifugao people: A collection of original sources. Microreproduction Dept., Harvard University Library.

Chicago-referens (17:e uppl.)

Beyer, Henry Otley. History and Ethnography of the Ifugao People: A Collection of Original Sources. Cambridge, Mass: Microreproduction Dept., Harvard University Library.

MLA-referens (9:e uppl.)

Beyer, Henry Otley. History and Ethnography of the Ifugao People: A Collection of Original Sources. Microreproduction Dept., Harvard University Library.