WELLHAUSEN, J. (1975). The Religio-political factions in early Islam,. North-Holland.
Cita Chicago (17th ed.)WELLHAUSEN, Julius. The Religio-political Factions in Early Islam,. Amsterdam: North-Holland, 1975.
Cita MLA (9th ed.)WELLHAUSEN, Julius. The Religio-political Factions in Early Islam,. North-Holland, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.