TY - RPRT TI - Index to U.S. Geological Survey computer files containing daily values for water parameters to September 30, 1971: Western Region AU - Charles R. Showen AU - Neil G. Stuthmann PY - 1973 DO - 10.3133/wri7328 UR - https://pubs.usgs.gov/publication/wri7328 ID - wri7328 ER -