TY  - GEN
CN  - I 19.76:
CY  - Reston, Va. :
CY  - Denver, Colo. :
ID  - 240932
KW  - Hydrology
KW  - Water chemistry
N1  - Description based on: 1991; title from cover.
PB  - The Division ;
PB  - U.S. Geological Survey, Books and Open-File Reports Section [distributor,
PP  - Reston, Va. :
PP  - Denver, Colo. :
T1  - National research program of the Water Resources Division. U.S. Geological Survey, fiscal year ...
TI  - National research program of the Water Resources Division. U.S. Geological Survey, fiscal year ...
ER  -