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keyword: Ecuador – 24 free books.
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Artisanal and Small-Scale Gold Mining (ASGM) Related Environmental and Health Problems
Masayuki Sakakibara et al. (editors)
COVID-2019 Impacts on Education Systems and Future of Higher Education
Kelum Gamage (editor)
Detrital Mineral U/Pb Age Dating and Geochemistry of Magmatic Products in Basin Sequences
Wilfried Winkler and Albrecht von Quadt, editors
Does Commons Grabbing Lead to Resilience Grabbing?
Tobias Haller et al. (editors)
Stig Enemark et al. (editors)
Integrated Geophysical Methods for Shallow Aquifers Characterization and Modelling
Francisco Javier Alcalá et al. (editors)
Sabina Porfido et al. (editors)
Plant Essential Oil with Biological Activity
Hazem Salaheldin Elshafie et al. (editors)