Madrigal, P. (2017). Petrographic analysis of the volcanic bombs and blocks from Poás Volcano: April-june 2017 eruptive period. Universidad de Costa Rica.
Style de citation Chicago (17e éd.)Madrigal, Pilar. Petrographic Analysis of the Volcanic Bombs and Blocks from Poás Volcano: April-june 2017 Eruptive Period. Universidad de Costa Rica, 2017.
Style de citation MLA (9e éd.)Madrigal, Pilar. Petrographic Analysis of the Volcanic Bombs and Blocks from Poás Volcano: April-june 2017 Eruptive Period. Universidad de Costa Rica, 2017.
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