TY  - RPRT
TI  - Yearly variations in runoff and frequency of dry years for the conterminous United States, 1911-79
AU  - W. B. Langbein
AU  - J. R. Slack
PY  - 1982
DO  - 10.3133/ofr82751
UR  - https://pubs.usgs.gov/publication/ofr82751
ID  - ofr82751
ER  -