Hines, J. M., Hungerford, H. R., & Tomera, A. N. (1987). Analysis and synthesis of research on responsible environmental behavior: A meta-analysis. Journal of Environmental Education, 18, 2, 1-8.

Kinsey, T. G., & Wheatley, J. H. (1984). The effects of an environmental studies course on the defensibility of environmental attitudes. Journal of Research in Science Teaching, 21, 7, 675-683.

Kok, G., & Siero, S. (1985). Tin recycling: Awareness, comprehension, attitude, intention and behavior. Journal of Economic Psychology, 6, 2, 157-173.

Levenson, H. (1974). Ecological knowledge and perception of environmental modifiability. American Psychologist, 29, 4, 274-275.

Ostman, R. E., & Parker, J. L. (1987). Impact of education, age, newspapers, and television on environmental knowledge, concerns, and behaviors. Journal of Environmental Education, 19, 1, 3-9.

Newhouse, N. (1990). Implications of attitude and behavior research for environmental conservation. Journal of Environmental Education, 22, 1, 26-32.

Pettus, A. (1976). Environmental education and environmental attitudes.. Journal of Environmental Education, 8, 1, 48-51.

Arbuthnot, J. (1974). Environmental knowledge and recycling behavior as a fuction of attitudes and personality characteristics. Personality and Social Psychology Bulletin, 1, 1, 119-121.

Oskamp, S., Harrington, M. J., Edwards, T. C., Sherwood, D. L., Okuda, S. M., & Swanson, D. C. (1991). Factors influencing household recycling behavior. Environment and Behavior, 23, 4, 494-519.

Schahn, J., & Holzer, E. (1990). Studies of individual environmental concern: The role of knowledge, gender, and background variables. Environment and Behavior, 22, 6, 767-786.