Agrahari Ravi P. (2024). Environmental Ecology, Bio diversity, Climate Change & Disaster Management: For UPSC, IES, IFoS & other State Competitive Examinations (3rd ed.). Mc Graw Hill.
Chicago-čujuhus (17. p.)Agrahari Ravi P. Environmental Ecology, Bio Diversity, Climate Change & Disaster Management: For UPSC, IES, IFoS & Other State Competitive Examinations. 3rd ed. Chennai: Mc Graw Hill, 2024.
MLA-čujuhus (9. p.)Agrahari Ravi P. Environmental Ecology, Bio Diversity, Climate Change & Disaster Management: For UPSC, IES, IFoS & Other State Competitive Examinations. 3rd ed. Mc Graw Hill, 2024.
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