Killingsworth, M. J., & Palmer, J. S. (2012). Ecospeak: Rhetoric and environmental politics in America (Pbk. ed.). Southern Illinois University Press.
Citace podle Chicago (17th ed.)Killingsworth, M. Jimmie, a Jacqueline S. Palmer. Ecospeak: Rhetoric and Environmental Politics in America. Pbk. ed. Carbondale: Southern Illinois University Press, 2012.
Citace podle MLA (9th ed.)Killingsworth, M. Jimmie, a Jacqueline S. Palmer. Ecospeak: Rhetoric and Environmental Politics in America. Pbk. ed. Southern Illinois University Press, 2012.
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