APA Citation

Madrigal, P., & Lücke, O. H. (2017). Petrographic Analysis of the Volcanic Bombs and Blocks from Poás Volcano: April-June 2017 Eruptive Period.

Chicago Style Citation

Madrigal, Pilar, and Oscar H. Lücke. Petrographic Analysis of the Volcanic Bombs and Blocks From Poás Volcano: April-June 2017 Eruptive Period. 2017.

MLA Citation

Madrigal, Pilar, and Oscar H. Lücke. Petrographic Analysis of the Volcanic Bombs and Blocks From Poás Volcano: April-June 2017 Eruptive Period. 2017.

Warning: These citations may not always be 100% accurate.