TY  - BOOK
AU  - Kupchella,Charles E.
AU  - Hyland,Margaret C.
TI  - Environmental science :living within the system of nature: living within the system of nature 
SN  - 0205117236
AV  - QH 541 .K96771989
PY  - 1989///]
CY  - Boston
PB  - Allyn and Bacon
KW  - Ecology
KW  - Pollution
KW  - Human ecology
N1  - Includes bibliographies and index
ER  -