APA (7. basım) Alıntı

Bhatnagar Aditya. (2010). Principles of environmental studies. Oxford University Press.

Chicago Style (17. basım) Atıf

Bhatnagar Aditya. Principles of Environmental Studies. Delhi: Oxford University Press, 2010.

MLA (9th ed.) Atıf

Bhatnagar Aditya. Principles of Environmental Studies. Oxford University Press, 2010.