Παραπομπή σε μορφή APA (7η εκδ.)

(2000). Provincial physical framework plan: Comprehensive provincial land use plan, province of Apayao, planning period 1996-2002. Province of Apayao Provincial Development Council.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Provincial Physical Framework Plan: Comprehensive Provincial Land Use Plan, Province of Apayao, Planning Period 1996-2002. Apayao: Province of Apayao Provincial Development Council, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Provincial Physical Framework Plan: Comprehensive Provincial Land Use Plan, Province of Apayao, Planning Period 1996-2002. Province of Apayao Provincial Development Council, 2000.