Shivanand Nautiyal. (1997). Paryavaran: Samasya aur samadhan. Samayik.
Chicago Edition CitationShivanand Nautiyal. Paryavaran: Samasya Aur Samadhan. New Delhi: Samayik, 1997.
MLA Edition CitationShivanand Nautiyal. Paryavaran: Samasya Aur Samadhan. Samayik, 1997.
Warning: These citations may not always be 100% accurate.