TY  - BOOK
AU  - Nebel,Bernard J.
TI  - Environmental science: the way the world works 
SN  - 0132822032
AV  - QH541.N3 1990 
PY  - 1990///
CY  - Englewood Cliffs,
PB  - Prentice Hall
KW  - Ecology
KW  - Human ecology
KW  - Pollution - Environmental aspects
N1  - includes bibliography, appendix and Colored maps of Some steps toward environmental progress, Some threats to the environment on endpapers; Includes bibliographical references (p. 546-560) and index
ER  -