Title: Ecology and our endangered life-support systems
First published: 1989
Subjects: Human ecology, Ecology, Okologie, Ecologie, Ecologie humaine, Milieuverontreiniging, 42.90 ecology: general, 42.95 nature conservation, Biotopen, Écologie, Qh541 .o293 1993, Qh 541, 574.5