TY  - BOOK
T1  - Regional estimates of the amount of U.S. agricultural land located in watersheds with poor water quality
DA  - 1994.
CY  - Reston, Va. :
CY  - [Denver, CO :
AU  - Smith, Richard A.
AU  - Schwarz, Gregory E.
AU  - Alexander, Richard B.
CN  - I 19.76:
PB  - U.S. Geological Survey ;
PB  - USGS Earth Science Information Center, Open-File Reports Section, distributor],
PP  - Reston, Va. :
PP  - [Denver, CO :
PY  - 1994.
N1  - Distributed to depository libraries in microfiche.
N1  - Shipping list no.: 95-0614-M.
ID  - 196521
KW  - Watersheds
KW  - Water quality
KW  - Nonpoint source pollution
KW  - Agricultural pollution
TI  - Regional estimates of the amount of U.S. agricultural land located in watersheds with poor water quality
ER  -