APA

Sharma R., India ancient past, Ecology and environment & Maurya age. (2021). Indias ancient past. New Delhi: Oxford University Press.

Chicago

Sharma R.S, India ancient past, Ecology and environment and Maurya age. 2021. Indias ancient past. New Delhi: Oxford University Press.

Harvard

Sharma R., India ancient past, Ecology and environment and Maurya age. (2021). Indias ancient past. New Delhi: Oxford University Press.

MLA

Sharma R.S, India ancient past, Ecology and environment and Maurya age. Indias ancient past. New Delhi: Oxford University Press. 2021.