Sheshagiri, N. (1982). Pollution. NBT.
Cita Chicago (17th ed.)Sheshagiri, N. Pollution. New delhi: NBT, 1982.
Cita MLA (9th ed.)Sheshagiri, N. Pollution. NBT, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)