Ecology and our endangered life-support systems
By Eugene Pleasants Odum
Subjects: O˜kologie, Ecologie humaine, 42.90 ecology: general, Ecologie, Ecology, Milieuverontreiniging, 42.95 nature conservation, 574.5, Écologie, Qh 541, Human ecology, Qh541 .o293 1993, Biotopen
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