Columbia subject headings:
Authors, American--19th century--Biography.
Seasons in literature.
Thoreau, Henry David, 1817-1862--Psychology.
Harvard subject headings:
Authors, American--19th century--Biography
Seasons in literature.
Thoreau, Henry David, 1817-1862--Biography--Psychology.
Princeton subject headings:
Authors, American--19th century--Biography.
Seasons in literature.
Thoreau, Henry David, 1817-1862--Psychology.