(PG0311) Charles Maldonado talks with visitors about the efficiency of compact flourescent light bulbs at a Earth Day Fair in Civic Center Park in Denver, Colo., on Monday, April 21, 2008. (PRESTON GANNAWAY/ROCKY MOUNTAIN NEWS) Names: Charles Maldonado
PRESTON GANNAWAY, (PG0311) Charles Maldonado talks with visitors about the efficiency of compact flourescent light bulbs at a Earth Day Fair in Civic Center Park in Denver, Colo., on Monday, April 21, 2008. (PRESTON GANNAWAY/ROCKY MOUNTAIN NEWS) Names: Charles Maldonado (04/22/2008), [436373220] . Denver Public Library Digital Collections, accessed 15/01/2026, https://digital.denverlibrary.org/nodes/view/1002950