Tohutoro APA (7th ed.)
Singh, S., & Singh, S. Environmental Geography. Prayag Pustak Bhawan.
Tohutoru Kātū Chicago (17th ed.)
Singh, Savindra, me Sweta Singh. Environmental Geography. Allahabad, India: Prayag Pustak Bhawan.
Tohutoro MLA (9th ed.)
Singh, Savindra, me Sweta Singh. Environmental Geography. Prayag Pustak Bhawan.
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