• 1 Politics and government
• 1 Socialism
• 1 Working class

• 1 International Communist League (Fourth Internationalist). International Executive Committee
• 1 Latin American Progressive Study Group (Ithaca, N.Y.)
• 1 Spartacist League of the U.S

• 2 Spanish
• 1 English

• 1 Caribbean Area
• 1 Central America

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