APA-referens (7:e uppl.)

Barton, R. F. (1922). Ifugao economics. University of California Press.

Chicago-referens (17:e uppl.)

Barton, Roy Franklin. Ifugao Economics. Berkeley, Calif: University of California Press, 1922.

MLA-referens (9:e uppl.)

Barton, Roy Franklin. Ifugao Economics. University of California Press, 1922.