Poonia M.P. & Sharma S.C. (2023). Environmental Studies (03rd.). Khanna Publications.
芝加哥风格引文Poonia M.P. & Sharma S.C. Environmental Studies. 03rd. New Delhi: Khanna Publications, 2023.
MLA引文Poonia M.P. & Sharma S.C. Environmental Studies. 03rd. Khanna Publications, 2023.
警告：这些引文格式不一定是100％准确.