Willcox, C. D. W. (1976). The head hunters of northern Luzon. From Ifugao to Kalinga: A ride through the mountains of northern Luzon, with an appendix of the independence of the Philippines [microform]. Photoduplication Service, University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Willcox, Cornelis De Witt. The Head Hunters of Northern Luzon. From Ifugao to Kalinga: A Ride Through the Mountains of Northern Luzon, with an Appendix of the Independence of the Philippines [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
Citatione MLA (9a ed.)Willcox, Cornelis De Witt. The Head Hunters of Northern Luzon. From Ifugao to Kalinga: A Ride Through the Mountains of Northern Luzon, with an Appendix of the Independence of the Philippines [microform]. Photoduplication Service, University of the Philippines Library, 1976.