References
- Childers , D. 1981 . The effects of environmental case study instruction on ninth grade students' environmental values, and perception of willingness to take citizenship action . Dissertation Abstracts International , 42 ( 4 ) : 1574-A
- Griffin , S. 1983 . The effects of an adolescent apprenticeship process in environmental education on the development of citizenship participation characteristics in high school seniors . Dissertation Abstracts International , 43 ( 8 ) : 2623-A
- Jordan , J. R. , Hungerford , H. R. and Tomera , A. N. 1986 . Effects of two residential environmental workshops on high school students . Journal of Environmental Education , 18 ( 1 ) : 15 – 22 .
- Marcinkowski , T. 1988–89 . Commentary on When words speak louder than actions . Journal of Environmental Education , 20 ( 2 ) : 3 – 5 .
- Monroe , M. C. and Kaplan , S. 1988 . When words speak louder than actions . Journal of Environmental Education , 19 ( 3 ) : 38 – 41 .
- Ramsey , J. , Hungerford , H. R. and Tomera , A. 1981 . Effects of environmental action and environmental case study instruction on the overt behavior of eighth grade students . Journal of Environmental Education , 13 ( 1 ) : 24 – 29 .
- Wickelgren , W. A. 1979 . Cognitive Psychology , 11 – 12 . Englewood Cliffs, NJ : Prentice-Hall .
- Wilson , R. J. and Tomera , A. 1980 . Enriching traditional biology with an environmental perspective . Journal of Environmental Education , 12 ( 1 ) : 8 – 12 .