Ulloa Carmiol, A., & Goicoechea Carranza, C. (2013). Geotourism potential of underground sites in Costa Rica.
Chicago Stili AlıntıUlloa Carmiol, Andrés, ve Carlos Goicoechea Carranza. Geotourism Potential of Underground Sites in Costa Rica. 2013.
MLA AlıntıUlloa Carmiol, Andrés, ve Carlos Goicoechea Carranza. Geotourism Potential of Underground Sites in Costa Rica. 2013.
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