Cita APA (7th ed.)
Joseph, B. (2005). Environmental studies. Tata McGraw-Hill.
Cita Chicago (17th ed.)
Joseph, Benny. Environmental Studies. New Delhi: Tata McGraw-Hill, 2005.
Cita MLA (9th ed.)
Joseph, Benny. Environmental Studies. Tata McGraw-Hill, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.