Παραπομπή σε μορφή APA (7η εκδ.)

Hiromitsu Umehara. Koronadal Valley: Half a century after land settlement in South Cotabato, Mindanao. Philippine studies..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hiromitsu Umehara. "Koronadal Valley: Half a Century After Land Settlement in South Cotabato, Mindanao." Philippine Studies. .

Παραπομπή σε μορφή MLA (9th εκδ.)

Hiromitsu Umehara. "Koronadal Valley: Half a Century After Land Settlement in South Cotabato, Mindanao." Philippine Studies., .