TY  - RPRT
TI  - Federal Information Processing Standards Publication: codes for the identification of hydrologic units in the United States and the Caribbean outlying areas 
PY  - 1983
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS FIPS 103-1983
DO  - 10.6028/NBS.FIPS.103-1983
ER  -