„… , Elizabeth. Richard M. Nixon. New York: Time Books/Henry Holt and Company, 2007.Ehrlich, Paul, and Jonathan …” „… , Elizabeth. The Sixth Extinction. New York: Henry Holt and Company, 2014.Lash, Jonathan, Katherine Gillman …” „… Village Voice, 1972.Reed, Nathanial Pryor. Travels on the Green Highway: An Environmentalist’s Journey …”