History -- 4 Politics and government -- 4 20th century 1 Bibliography -- 1 Decentralization in government -- 1 Executive power -- 1 Foreign relations -- 1 more ... Indexes -- 1 Law -- 1 Legal research -- 1 Migration, internal -- 1 Opposition (Political science) -- 1 Political culture -- 1 Political parties -- 1 Population -- 1 less ...