Alfaro, A., Denyer, P., Alvarado, G.E., Gazel, E. and Chamorro, C. 2018. Stratigraphy and Petrography of Igneous Rocks in the Upper Part of the Talamanca Cordillera, Costa Rica. Revista geológica de América central. 58, (Apr. 2018). DOI:https://doi.org/10.15517/rgac.v58i0.32669.