TY  - GEN
AU  - Postel, Sandra
TI  - Altering the earth's chemistry : assessing the risks
SN  - 0-916468-72-0
PY  - 1986///
CY  - Washington
PB  - Worldwatch
KW  - WILDLIFE CONSERVATION
KW  - NATURE CONSERVATION
KW  - MAN-INFLUENCE ON NATURE
ER  -