Columbia subject headings:
Islam and politics--20th century.
Islam and politics--21st century.
Terrorism--Religious aspects--Islam.
Violence--Religious aspects--Islam.
Harvard subject headings:
Islam and politics--20th century.
Islam and politics--21st century.
Terrorism--Religious aspects--Islam
Violence--Religious aspects--Islam
Princeton subject headings:
Islam and politics--20th century.
Islam and politics--21st century.
Terrorism--Religious aspects--Islam.
Violence--Religious aspects--Islam.