. . . . . . "Energy alternatives"@en . "Energy alternatives" . "Juvenile works"@en . "Juvenile works" . . "Presents an overview of issues involving alternative energy sources, discussing whether or not they are necessary, the viability of different sources, their use for transportation, and how their use would affect society."@en . "Presents an overview of issues involving alternative energy sources, discussing whether or not they are necessary, the viability of different sources, their use for transportation, and how their use would affect society." . . .