Columbia subject headings:
Twain, Mark, 1835-1910--Criticism and interpretation--Periodicals.
Twain, Mark, 1835-1910--Periodicals.
Twain, Mark, 1835-1910--Study and teaching--Periodicals.
Harvard subject headings:
Princeton subject headings:
Periodicals.
Twain, Mark, 1835-1910--Criticism and interpretation--Periodicals.
Twain, Mark, 1835-1910--Periodicals.
Twain, Mark, 1835-1910--Study and teaching--Periodicals.