APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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