TY  - RPRT
TI  - Twelfth Annual report of the Director of the United States Geological Survey, 1890-1891: Part 2 - Irrigation
AU  - J. W. Powell
PY  - 1891
DO  - 10.3133/ar12_2
UR  - https://pubs.usgs.gov/publication/ar12_2
ID  - ar12_2
ER  -