References
- Hungerford, H., Litherland, R., Peyton, R. B., Ramsey, J., & Volk, T. (1985). Investigating and evaluating environmental issues and actions. Champaign, IL: Stipes Publishing Co.
- Cowell, A. (2006, May). Some Europeans look north as Swedish economy prospers. Duluth Tribune, p. 15A.