Columbia subject headings:
Islam--Unity.
Shiites--Political activity--Lebanon.
Shīʻah--Relations--Sunnites.
Sunnites--Relations--Shīʻah.
Harvard subject headings:
Islam--Unity
Shiites--Political activity--Lebanon
Shī‘ah--Relations--Sunnites.
Sunnites--Relations--Shīʻah
Princeton subject headings:
Islam--Unity.
Shiites--Political activity--Lebanon.
Shīʻah--Relations--Sunnites.
Sunnites--Relations--Shīʻah.