Cleveland, C. and C. Morris [eds]. Dictionary of Energy (2nd ed.). Oxford, UK: Elsevier Science & Technology, 2014. Retrieved from https://search.credoreference.com/content/entry/este/visual_pollution/0.

Cleveland, C. and C. Morris [eds]. Dictionary of Energy (2nd ed.). Oxford, UK: Elsevier Science & Technology, 2014. Retrieved from https://search.credoreference.com/content/entry/este/visual_pollution/0.