TY  - RPRT
TI  - Definitions of components of the master water data index maintained by the National Water Data Exchange
AU  - R.A. Perry
AU  - O.O. Williams
PY  - 1982
DO  - 10.3133/ofr82327
UR  - https://pubs.usgs.gov/publication/ofr82327
ID  - ofr82327
ER  -