Kammen, D. M., & Hassenzahl, D. M. (1999). Should we risk it?: Exploring environmental, health, and technological problem solving. Princeton University Press.

Kammen, Daniel M., and David M. Hassenzahl. Should We Risk It?: Exploring Environmental, Health, and Technological Problem Solving. Princeton: Princeton University Press, 1999.

Kammen, Daniel M., and David M. Hassenzahl. Should We Risk It?: Exploring Environmental, Health, and Technological Problem Solving. Princeton University Press, 1999.