TY  - RPRT
TI  - Conceptual design for the National Water Information System
AU  - Melvin D. Edwards
AU  - Arthur L. Putnam
AU  - Norman E. Hutchison
PY  - 1987
DO  - 10.3133/b1792
UR  - https://pubs.usgs.gov/publication/b1792
ID  - b1792
ER  -