Columbia subject headings:
Twain, Mark, 1835-1910--Bibliography.
Twain, Mark, 1835-1910.
Harvard subject headings:
Authors, American--19th century--Biography
Authors, American--Homes and haunts--West (U.S.)
Twain, Mark, 1835-1910--Bibliography.
Twain, Mark, 1835-1910--Biography.
Twain, Mark, 1835-1910--Homes and haunts--West (U. S.).
West (U.S.)--Intellectual life--19th century.
Princeton subject headings: