Gupta S.P. (2018). Statistical Methods (45th ed.). Sultan Chand & Sons.
芝加哥风格引文Gupta S.P. Statistical Methods. 45th ed. New Delhi: Sultan Chand & Sons, 2018.
MLA引文Gupta S.P. Statistical Methods. 45th ed. Sultan Chand & Sons, 2018.
警告：这些引文格式不一定是100％准确.