Columbia subject headings:
Book collectors--Germany--Biography.
Gundolf, Friedrich, 1880-1931--Books and reading.
Gundolf, Friedrich, 1880-1931--Library.
Gundolf, Friedrich, 1880-1931.
Harvard subject headings:
Book collectors--Germany--Biography.
Gundolf, Friedrich, 1880-1931--Books and reading.
Gundolf, Friedrich, 1880-1931--Library.
Gundolf, Friedrich, 1880-1931.
Princeton subject headings:
Book collectors--Germany--Biography.
Gundolf, Friedrich, 1880-1931--Books and reading.
Gundolf, Friedrich, 1880-1931--Library.
Gundolf, Friedrich, 1880-1931.