Cita APA

Ulloa Carmiol, A., & Goicoechea Carranza, C. (2013). Geotourism potential of underground sites in Costa Rica.

Chicago Style Citation

Ulloa Carmiol, Andrés, i Carlos Goicoechea Carranza. Geotourism Potential of Underground Sites in Costa Rica. 2013.

Cita MLA

Ulloa Carmiol, Andrés, i Carlos Goicoechea Carranza. Geotourism Potential of Underground Sites in Costa Rica. 2013.

Atenció: Aquestes cites poden no estar 100% correctes.