Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. (2014). National ecotourism strategy 2013-2022. Department of Tourism.
Style de citation Chicago (17e éd.)Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. National Ecotourism Strategy 2013-2022. [Manila]: Department of Tourism, 2014.
Style de citation MLA (9e éd.)Philippines. Department of Tourism. National Ecotourism Steering Committee Ecotourism Technical Working Group. National Ecotourism Strategy 2013-2022. Department of Tourism, 2014.
Attention : ces citations peuvent ne pas être correctes à 100%.