TY  - BOOK
AU  - Kupchella, Charles E.
AU  - Hyland, Margaret C.
TI  - Environmental science
SN  - 0205117236
AV  - QH 541 .K86 1989 
PY  - 1989///
CY  - Boston
PB  - Allyn and Bacon
KW  - Environmental science
N1  - include bibliographies and index
ER  -