Leonard-Barton, D. (1981). Diffusion of energy conservation and technologies. In J.D. Claxton, C. D. Anderson, J.R.B. Ritchie, & G.H.G. McDougall (Ed.). Consumers and energy conservation. (pp. 97-107). New York: Praeger.

Landon, E. L. J. & Banks, S. K. (1978). Relative efficiency and bias of plus-one telephone sampling. In R. Ferber (Ed.). Readings in survey research. (pp. 398-407). Chicago: American Marketing Association.

Kempton, W., Gladhart, P. & Keefe, D. (1983). Home insulation: The user's view. In S.A. Goran, D.M. Greason, & J.D. McAllister (Ed.). Thermal insulation, materials, and systems for energy conservation in the 1980's. (pp. 117-137). Philadelphia: American Society for Testing and Materials.

Kaplan, R. & Kaplan, S. (1987). The garden as a restorative experience. In M. Francis & R.T. Hester (Ed.). Meanings of the garden. (pp. 334-341). Davis, CA: University of California, Davis.

Meadows, D. H., Meadows, D. L. & Randers, J. (1992). Beyond the Limits: Confronting global collapse envisioning a sustainable future. (pp. 300). Toronto: McClelland & Stewart Incorporated.

Frank, J. D. (1972). Environmental pollution and human values. In T.R. Armstrong (Ed.). Why do we still have an ecological crisis?. (pp. 6-18). Englewood Cliffs, N.J.: Prentice-Hall.

Abrahamson, D. E. (1989). The challenge of global warming. (pp. 358). Washington, D.C.: Island Press.

Sutton, S. R. (1982). Fear-arousing communications: A critical examination of theory and research. In J.R. Eiser (Ed.). Social psychology and behavioral medicine. (pp. 303 - 337). New York: John Wiley & Sons.

Perloff, R. M. & Brock, T. C. (1980). "And thinking makes it so": Cognitive responses to persuasion.. In M.E. Roloff & G.R. Miller (Ed.). Persuasion: New directions in theory and research.. (pp. 67-169). Beverly Hills: Safe Publications.

Boardman, R. (1992). Canadian environmental policy: Ecosystems, politics, and process. (pp. 321). Toronto: Oxford University Press.