Valkenberg. Renewing Islam by Service. The Catholic University of America Press.
Chicagoスタイル(17版)引用形式Valkenberg. Renewing Islam by Service. The Catholic University of America Press.
MLA(9版)引用形式Valkenberg. Renewing Islam by Service. The Catholic University of America Press.
警告: この引用は必ずしも正確ではありません.