TY  - BOOK
AU  - Postel, Sandra.
TI  - Altering the earth's chemistry: : assessing the risks
T2  - Worldwatch paper
PY  - 1986///
CY  - Washington, D. C.
PB  - World Watch Institute
KW  - Suelos
KW  - Contaminación
KW  - Química de
N1  - D48-145
ER  -