Παραπομπή σε μορφή APA (7η εκδ.)

Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. (2014). National ecotourism strategy 2013-2022. Department of Tourism.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. National Ecotourism Strategy 2013-2022. [Manila]: Department of Tourism, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. National Ecotourism Strategy 2013-2022. Department of Tourism, 2014.