TY  - RPRT
TI  - Software quality assurance in the National Water Information System
AU  - G.R. Dempster
AU  - C.F. Merk
PY  - 1991
DO  - 10.3133/ofr91218
UR  - https://pubs.usgs.gov/publication/ofr91218
ID  - ofr91218
ER  -