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