Παραπομπή σε μορφή APA (7η εκδ.)

Polenda, F. C., & Elkins, R. E. (1989). A voice from the hills: Essays on the culture and world view of the Western Bukidnon Manobo people. Linguistic Society of the Philippines.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Polenda, Francisco Col-om, και Richard E. Elkins. A Voice from the Hills: Essays on the Culture and World View of the Western Bukidnon Manobo People. Manila: Linguistic Society of the Philippines, 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

Polenda, Francisco Col-om, και Richard E. Elkins. A Voice from the Hills: Essays on the Culture and World View of the Western Bukidnon Manobo People. Linguistic Society of the Philippines, 1989.