1. Evaluating energy conservation programs: is verbal report enough?;Geller;Journal of Consumer Research,1981
2. Eight of 10 Americans are environmentalists at least so they say;Gutfeld;Wall Street Journal,1991
3. Environmental beliefs and values;Milbrath,1985
4. The personal antecedents and consequences of ecologically responsible behavior: a review;Lipsey;JSAS Catalog of Selected Documents in Psychology,1977
5. Environmental ethics;Seligman;Journal of Social Issues,1989