Columbia subject headings:
Economic history--20th century.
Political development.
Post-communism.
Postmodernism--Political aspects.
Qaida (Organization)
World politics--20th century.
Harvard subject headings:
Economic history--20th century
Political development.
Post-communism.
Postmodernism--Political aspects.
Qaida (Organization).
World politics--20th century
Princeton subject headings:
Civilization, Modern--21st century.