Rajagopalan, R. (2016). Environment and ecology: A complete guide for civil services preliminary and main examinations. LexisNexis.
Chicago Edition CitationRajagopalan, R. Environment and Ecology: A Complete Guide for Civil Services Preliminary and Main Examinations. Haryana: LexisNexis, 2016.
MLA Edition CitationRajagopalan, R. Environment and Ecology: A Complete Guide for Civil Services Preliminary and Main Examinations. LexisNexis, 2016.
Warning: These citations may not always be 100% accurate.