Columbia subject headings:
Koch, Gerda, 1903-1994.
Harvard subject headings:
Koch, Gerda, 1903-
Koch, Gerda, 1903-1994.
Libel and slander--Cases.
Libel and slander--United States--Cases.
Trials (Libel)--Minnesota.
Princeton subject headings:
Koch, Gerda, 1903-