Daniels, R. R. &. K. (2010). Environmental Studies. St. Marti's Press.
Cita Chicago (17th ed.)Daniels, R.J Ranjit & Krishnaswamy. Environmental Studies. New Delhi: St. Marti's Press, 2010.
Cita MLA (9th ed.)Daniels, R.J Ranjit & Krishnaswamy. Environmental Studies. St. Marti's Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.