Sharma, D. (2013). Basics of environmental science. Advance Lenarner Press.
Chicago Edition CitationSharma, D.K. Basics of Environmental Science. New Delhi: Advance Lenarner Press, 2013.
MLA引文Sharma, D.K. Basics of Environmental Science. Advance Lenarner Press, 2013.
警告:這些引文格式不一定是100%准確.