TY  - BOOK
AU  - Herrmann, Raymond,
AU  - Johnson,A.I.
ED  - American Water Resources Association
TI  - Acid rain: A water resources issue for the 80's 
AV  - TD196.A25 A35
PY  - 1983///
CY  - Bethesda, maryland
PB  - American water resources association
KW  - Lluvia ácida
ER  -