Rosaldo, Renato. Ilongot headhunting, 1883-1974 : a study in society and history / Renato Rosaldo. - Stanford, California : Stanford University Press, 1980. - vi, 313 p. : ill. ; 24 cm. Bibliography: p. 291 -297. Subjects--Topical Terms: Ilongot (Philippine tribe).Head--Hunters--History.--Philippines--Luzon