Columbia subject headings:
Birth control--History--20th century--Sources.
Sanger, Margaret, 1879-1966--Archives.
Women's rights--United States--History--20th century--Sources.
Harvard subject headings:
Birth control--United States--History--20th century--Sources.
Feminists--United States--Archives.
Sanger, Margaret, 1879-1966--Archives.
Women political activists--United States--Archives.
Women social reformers--United States--Archives.
Princeton subject headings:
Birth control--History--20th century--Sources.
Sanger, Margaret, 1879-1966--Archives.
Women's rights--United States--History--20th century--Sources.