Rai, G. (2020). Non-Conventional Energy Sources (06th.). Khanna Publisher.
芝加哥风格引文Rai, G.D. Non-Conventional Energy Sources. 06th. New Delhi: Khanna Publisher, 2020.
MLA引文Rai, G.D. Non-Conventional Energy Sources. 06th. Khanna Publisher, 2020.
警告：这些引文格式不一定是100％准确.