Columbia subject headings:
Harvard subject headings:
Nature (Aesthetics)
Nature in literature.
Thoreau, Henry David, 1817-1862--Criticism and interpretation.
Thoreau, Henry David, 1817-1862--Knowledge--Natural history.
Princeton subject headings:
Nature (Aesthetics)
Nature in literature.
Thoreau, Henry David, 1817-1862--Criticism and interpretation.
Thoreau, Henry David, 1817-1862--Knowledge--Natural history.