"Electronic books"@en . . "Describes the life-cycle of the quaking aspen, its role in the ecosystem, and the threat to aspens from animals and people."@en . "Describes the life-cycle of the quaking aspen, its role in the ecosystem, and the threat to aspens from animals and people." . "Juvenile works" . "Juvenile works"@en . . . . . . . "Quaking aspen" . "Quaking aspen"@en . . . . . . . . . . "JUVENILE NONFICTION Science & Nature Flowers & Plants." . . . .