Hefner, R. W. The struggle for the soul of Islam: Robert W. Hefner. Understanding September 11.(2002).
Chicago-Zitierstil (17. Ausg.)Hefner, Robert W. "The Struggle for the Soul of Islam: Robert W. Hefner." Understanding September 11.(2002) .
MLA-Zitierstil (8. Ausg.)Hefner, Robert W. "The Struggle for the Soul of Islam: Robert W. Hefner." Understanding September 11.(2002), .
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.