Gupta, S., & Gupta, M. (2007). Business statistics (14th ed.). Sultan Chand & Sons.
芝加哥风格引文Gupta, S.P, 与 M.P Gupta. Business Statistics. 14th ed. New Delhi: Sultan Chand & Sons, 2007.
MLA引文Gupta, S.P, 与 M.P Gupta. Business Statistics. 14th ed. Sultan Chand & Sons, 2007.
警告：这些引文格式不一定是100％准确.