Rajaram Kalpana, Suri R.K, & Vidya R. (2023). Developments In Science And Technology: For UPSC Civil Services Mains and Prelims General Studies (31st ed.). Spectrum Books.
芝加哥风格引文Rajaram Kalpana, Suri R.K, 与 Vidya R. Developments In Science And Technology: For UPSC Civil Services Mains and Prelims General Studies. 31st ed. New Delhi: Spectrum Books, 2023.
MLA引文Rajaram Kalpana, et al. Developments In Science And Technology: For UPSC Civil Services Mains and Prelims General Studies. 31st ed. Spectrum Books, 2023.
警告：这些引文格式不一定是100％准确.