Sarkar, A. K. (1992). Zero: Its role and prospects in Indian thought. South Asian Publ.
芝加哥风格引文Sarkar, Anil Kumar. Zero: Its Role and Prospects in Indian Thought. New Delhi: South Asian Publ, 1992.
MLA引文Sarkar, Anil Kumar. Zero: Its Role and Prospects in Indian Thought. South Asian Publ, 1992.
警告:这些引文格式不一定是100%准确.