Cita APA (7th ed.)
Srivastava, S. (2007). Environmental studies. S.K. Kataria.
Cita Chicago (17th ed.)
Srivastava, Smriti. Environmental Studies. Delhi: S.K. Kataria, 2007.
Cita MLA (9th ed.)
Srivastava, Smriti. Environmental Studies. S.K. Kataria, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.