(2008). Down to Earth Nos. 16-24. Society for Environmental Communication.
Cita Chicago (17th ed.)Down to Earth Nos. 16-24. New Delhi: Society for Environmental Communication, 2008.
Cita MLA (9th ed.)Down to Earth Nos. 16-24. Society for Environmental Communication, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.