TY  - BOOK
AU  - Kupchella, Charles E.,author.
AU  - Hyland, Margaret C., author.
TI  - Environmental science: living within the system of nature / 
SN  - 0205117236
U1  - DC 304.2 1989
PY  - 1989///
CY  - Boston : 
PB  - Allyn and Bacon, 
KW  - Ecology
KW  - Pollution
KW  - Environmental aspects
KW  - Human ecology
N1  - Includes bibliographies and index
ER  -