Columbia subject headings:
National liberation movements--South America--Bibliography.
Progress--Bibliography.
Social justice--Bibliography.
Urbanization--Bibliography.
Harvard subject headings:
Apprentices--Bibliography.
Bolívar, Simón, 1783-1830--Bibliography.
Energy policy--Bibliography
National liberation movements--South America--Bibliography.
Progress--Bibliography.
Social justice--Bibliography.
Solidarity--Bibliography.
Urbanization--Bibliography
Princeton subject headings:
Bolívar, Simón--Bibliography.
National liberation movements--South America--Bibliography.
Progress--Bibliography.
Social justice--Bibliography.
Urbanization--Bibliography.