Columbia subject headings:
Harvard subject headings:
Basel-Stadt (Switzerland)--Politics and government.
Political parties--Switzerland--Basel-Stadt--History.
Socialist parties--Switzerland--Basel-Stadt--History.
Sozialdemokratische Partei Basel-Stadt--History.
Princeton subject headings:
Basel-Stadt (Switzerland)--Politics and government.
Political parties--Switzerland--Basel-Stadt--History.
Socialist parties--Switzerland--Basel-Stadt--History.
Sozialdemokratische Partei Basel-Stadt--History.