http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Workshop on energy planning resources for Puerto Rico
San Juan, March 19, 2019 : Mayaguez, March 22, 2019
National Renewable Energy Laboratory (U.S.)
1 online resource (96 pages) : color illustrations, color maps.