Columbia subject headings:
P.S.O.E. (Political party)--History.
Spain--Politics and government--1975-1982.
Harvard subject headings:
Princeton subject headings:
Communism--Spain--History--20th century.
González, Felipe.
P.S.O.E. (Political party)
Political parties--Spain--History--20th century.
Sánchez, Pedro, 1972-.
Socialism--Spain--History--20th century.