Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. (2014). National ecotourism strategy 2013-2022. Department of Tourism.
Chicago-Zitierstil (17. Ausg.)Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. National Ecotourism Strategy 2013-2022. [Manila]: Department of Tourism, 2014.
MLA-Zitierstil (9. Ausg.)Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. National Ecotourism Strategy 2013-2022. Department of Tourism, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.