Observe Reserch Foundation. (2000). India: 2000- observer statistical hand book. O.R.F.].
Chicagoスタイル(17版)引用形式Observe Reserch Foundation. India: 2000- Observer Statistical Hand Book. New Delhi: O.R.F.], 2000.
MLA(9版)引用形式Observe Reserch Foundation. India: 2000- Observer Statistical Hand Book. O.R.F.], 2000.
警告: この引用は必ずしも正確ではありません.