TY  - BOOK
AU  - Knapton, J. R.
AU  - Nimick, David A.
CN  - I 19.76:
CY  - Helena, Mont. :
CY  - Denver, Colo. :
DA  - 1991]
ID  - 200091
KW  - Water quality
N1  - Distributed to depository libraries in microfiche.
N1  - Shipping list no.: 92-1200-M.
PB  - U.S. Geological Survey ;
PB  - Books and Open-File Reports Section [distributor,
PP  - Helena, Mont. :
PP  - Denver, Colo. :
PY  - 1991]
T1  - Quality assurance for water-quality activities of the U.S. Geological Survey in Montana
TI  - Quality assurance for water-quality activities of the U.S. Geological Survey in Montana
VL  - 91-216
ER  -