TY  - RPRT
TI  - The national hydrologic bench-mark network
AU  - Ernest D. Cobb
AU  - J.E. Biesecker
PY  - 1971
DO  - 10.3133/cir460d
UR  - https://pubs.usgs.gov/publication/cir460D
ID  - cir460D
ER  -