Bhatnagar Aditya. (2010). Principles of environmental studies. Oxford University Press.
Style de citation Chicago (17e éd.)Bhatnagar Aditya. Principles of Environmental Studies. Delhi: Oxford University Press, 2010.
Style de citation MLA (9e éd.)Bhatnagar Aditya. Principles of Environmental Studies. Oxford University Press, 2010.
Attention : ces citations peuvent ne pas être correctes à 100%.