PLT, Exploring Environmental Issues: Focus on Risk, 1998 American Forest Foundation, Washington DC

Ross, John. 1999. The Polar Bear Strategy: Reflections on Risk in Modern Life. Washington DC: Perseus Books

Ross, John. “Risk: Where Do the Real Dangers Lie?” Smithsonian 26, no. 8 (November 1995): 42-53

Leiss, William, and Christian Chociolko. Risk and Responsibility. Montreal: McGill-Queen’s University Press, 1994

Wilson, Richard, and E.A.C. Crouch. “Risk Assessment and Comparisons: An Introduction.” In Economics of the Environment, edited by Robert Dorfman and Nancy S. Dorfman. New York: W W Norton & Co. 1993

Society for Risk Analysis

United States Environmental Protection Agency