Manjunath, D. L. (2007). Environmental Studies. Pearson Education.
Cita Chicago (17th ed.)Manjunath, D. L. Environmental Studies. New Delhi: Pearson Education, 2007.
Cita MLA (8th ed.)Manjunath, D. L. Environmental Studies. Pearson Education, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.