Werner, C. M., Turner, J., Shipman, K., Twitchell, F. S., et al. (1995). Commitment, behavior, and attitude change: An analysis of voluntary recycling. Special Issue: Green psychology. Journal of Environmental Psychology, 15, 3, 197-208.

Larsen, K. S. (1995). Environmental waste: Recycling attitudes and correlates. Journal of Social Psychology, 135, 1, 83-88.

Lord, K. R. (1994). Motivating recycling behavior: A quasiexperimental investigation of message and source strategies. Special Issue: Psychology, marketing, and recycling. Psychology and Marketing, 11, 4, 341-358.

Green-Demers, I., Pelletier, L. G. & Menard, S. (1997). The impact of behavioural difficulty on the saliency of the association between self-determined motivation and environmental behaviours. Canadian Journal of Behavioural Science, 29, 3, 157-166.

Gillilan, Sheryl; Werner, Carol M.; Olson, Lynne; Adams, Dorothy (1996). Teaching the Concept of Precycling: A Campaign and Evaluation. Journal of Environmental Education, 28, 1, 11-18.

Hamad, C. D., Cooper, D. & Semb, G. (1977). Resource recovery: Use of a group contingency to increase paper recycling in an elementary school. Journal of Applied Psychology, 62, 6, 768-772.

Margai, F. L. (1997). Analyzing changes in waste reduction behavior in a low-income urban community following a public outreach program. Environment and Behavior, 29, 6, 769-792.

Nyamwange, M. (1996). Public perception of strategies for increasing participation in recycling programs. Journal of Environmental Education, 27, 4, 19-22.

Corral-Verdugo, V. (1997). Dual "realities" of conservation behavior: Self-reports vs observations of re-use and recycling behavior. Journal of Environmental Psychology, 17, 2, 135-145.

Schultz, P. W. & Oskamp, S. (1996). Effort as a moderator of the attitude-behavior relationship: General environmental concern and recycling. Social Psychology Quarterly, 59, 4, 375-383.