Columbia subject headings:
Opposition (Political science)
Rhineland-Palatinate (Germany)--Politics and government.
Sozialdemokratische Partei Deutschlands.
Harvard subject headings:
Opposition (Political science)
Rhineland-Palatinate (Germany)--Politics and government.
Sozialdemokratische Partei Deutschlands
Princeton subject headings:
Opposition (Political science)
Rhineland-Palatinate (Germany)--Politics and government.
Sozialdemokratische Partei Deutschlands.