References
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- Dubos , René . 1969 . So Human An Animal , New York : Scribners .
- Ehrlich , Paul R. and Holdren , John P. 1971 . “One Dimensional Ecology.” Paper copyrighted but unpublished as yet
- Russell , Robert D. 1970 . “Substances That Modify Mood and Behavior in Ecological Perspective . Journal of Alcohol Education , 15 Winter : 34 – 36 .
- Russell , Robert D. 1969 . “Toward a Functional Understanding of Ecology for Health Education . Journal of School Health , 39 December : 702 – 708 .