Columbia subject headings:
Advertising, Political--Catalogs.
Radio advertising--Catalogs.
Television advertising--Catalogs.
Harvard subject headings:
Advertising, Political--United States--History--20th century--Audio-visual aids--Catalogs.
Political campaigns--United States--History--20th century--Audio-visual aids--Catalogs.
University of Oklahoma. Political Commercial Archive--Catalogs.
Princeton subject headings:
Advertising, Political--United States--History--20th century--Audio-visual aids--Catalogs.
Political campaigns--United States--History--20th century--Audio-visual aids--Catalogs.
University of Oklahoma. Political Commercial Archive--Catalogs.