Columbia subject headings:
Agazzi, Fábio.
Castro, Fidel, 1926-2016.
Communism and society.
Communism--Brazil.
Communism--Cuba.
Communism--Latin America.
Communist countries.
Happiness.
Socialism and youth--Latin America.
Harvard subject headings:
Agazzi, Fábio.
Castro, Fidel, 1926-2016
Communism and society.
Communism--Brazil
Communism--Cuba
Communism--Latin America
Communist countries.
Happiness
Socialism and youth--Latin America.
Princeton subject headings:
Cuba--Social conditions.
Socialism--Cuba.
Socialism--Latin America.
Socialism.