FIGUEIRA, V., 		ROLHA, J., 		SOUSA, B., & 		VAREIRO, L.
(2022).
 Tourism and Protected Areas: The Guadiana Valley Natural Park, Portugal.
<em>Journal Of Environmental Management And Tourism, 13</em>(8), 2085 - 2093.
doi:10.14505/jemt.v13.8(64).01