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Releases by Jeff Caldwell

June 25, 2019 – September 8, 2020

Cover for Jeff Caldwell · Hydropower: Renewable Energy and the Environment (Hardcover Book) (2020)

Hydropower: Renewable Energy and... (2020)

Cover for Jeff Caldwell · Hydropower: Renewable Energy Essentials (Hardcover Book) (2019)

Hydropower: Renewable Energy Ess... (2019)