APA-referens (7:e uppl.)

(2008). Down to Earth Nos. 16-24. Society for Environmental Communication.

Chicago-referens (17:e uppl.)

Down to Earth Nos. 16-24. New Delhi: Society for Environmental Communication, 2008.

MLA-referens (9:e uppl.)

Down to Earth Nos. 16-24. Society for Environmental Communication, 2008.