Columbia subject headings:
American Publishing Company (Hartford, Conn.)
Bliss, Elisha, 1822-1880.
Twain, Mark, 1835-1910.
Harvard subject headings:
American Publishing Company (Hartford, Conn.)
Bliss, Elisha, 1822-1880
Twain, Mark, 1835-1910
Twain, Mark, 1835-1910--Friends and associates.
Princeton subject headings:
American Publishing Company (Hartford, Conn.)
Bliss, Elisha, 1822-1880.
Twain, Mark, 1835-1910.