"Father and Son Deer Hunt." Gale Opposing Viewpoints in Context. Detroit: Gale, 2010. Opposing Viewpoints in Context. Web. 30 Nov. 2015.
"Citizen Watchdog Detects High E.Coli Levels." MCT Photos. 2007. Opposing Viewpoints in Context. Web. 30 Nov. 2015.
"Clear-Cutting of the Spotted Owls Habitat, Oregon. Clear-cutting is a method of logging in which..."Encyclopedia of Environmental Ethics and Philosophy. Ed. J. Baird Callicott and Robert Frodeman. Vol. 1. Detroit: Macmillan Reference USA, 2009. Opposing Viewpoints in Context. Web. 30 Nov. 2015.