TY  - GEN
AU  - Nebel, Bernard J.
TI  - Environmental science : the way the world works
AV  - QH541 Neb.
PY  - 1987///
PB  - Prentice-Hall
KW  - Ecology
KW  - Human ecology
KW  - Pollution - Environmental aspects
N1  - 153
ER  -