Columbia subject headings:
Public opinion polls--Bibliography.
Public opinion--United States--Bibliography.
Social surveys--Bibliography.
Social surveys--United States--Bibliography.
Harvard subject headings:
Public opinion polls--Bibliography.
Public opinion--United States--Bibliography.
Social surveys--Bibliography.
Social surveys--United States--Bibliography.
Princeton subject headings:
Public opinion polls--Bibliography.
Public opinion--United States--Bibliography.
Social surveys--Bibliography.
Social surveys--United States--Bibliography.