Columbia subject headings:
Elections--Pennsylvania--Case studies.
Sexism--United States--Case studies.
United States. Congress. Senate--Elections--Case studies.
Harvard subject headings:
Elections--Pennsylvania--Case studies.
Sexism--United States--Case studies.
United States. Congress. Senate--Elections--Case studies.
Princeton subject headings:
Elections--Pennsylvania--Case studies.
Sexism--United States--Case studies.
United States. Congress. Senate--Elections--Case studies.