TY  - RPRT
TI  - Definitions of components of the Master Water Data Index maintained by the National Water Data Exchange
AU  - Robert A. Perry
AU  - Charles J. Lewis
PY  - 1978
DO  - 10.3133/ofr78183
UR  - https://pubs.usgs.gov/publication/ofr78183
ID  - ofr78183
ER  -