Babu, D. (2003). India: 2003-Observer statistical handbook. Rupa & Co.
芝加哥风格引文Babu, D. India: 2003-Observer Statistical Handbook. New Delhi: Rupa & Co, 2003.
MLA引文Babu, D. India: 2003-Observer Statistical Handbook. Rupa & Co, 2003.
警告：这些引文格式不一定是100％准确.