Rai G.D. (2020). Non-Conventional Energy Sources (6th.). Khanna Publishers.
芝加哥风格引文Rai G.D. Non-Conventional Energy Sources. 6th. Delhi: Khanna Publishers, 2020.
MLA引文Rai G.D. Non-Conventional Energy Sources. 6th. Khanna Publishers, 2020.
警告：这些引文格式不一定是100％准确.