Columbia subject headings:
Classical literature.
Comparative literature--American and classical.
Comparative literature--Classical and American.
Thoreau, Henry David, 1817-1862--Knowledge and learning.
Harvard subject headings:
Comparative literature--American and classical.
Comparative literature--Classical and American.
Thoreau, Henry David, 1817-1862--Knowledge--Classical literature.
Thoreau, Henry David, 1817-1862--Knowledge--Controversial literature.
Princeton subject headings:
Comparative literature--American and classical.
Comparative literature--Classical and American.
Thoreau, Henry David, 1817-1862--Knowledge--Classical literature.