Halm, H. (1997). The Fatimids and their traditions of learning. Ismaili heritage series.
Citação norma ChicagoHalm, Heinz. "The Fatimids and Their Traditions of Learning." Ismaili Heritage Series 1997.
Citação norma MLAHalm, Heinz. "The Fatimids and Their Traditions of Learning." Ismaili Heritage Series, 1997.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.