Maupin et al. 2014, USGS irrigation info
three page extracted from USGS Maupin et al. 2014
File 73862 is a 350kB Acrobat (PDF)
Uploaded:
Jun17 16
Last Modified: 2016-09-28 11:11:24
https://serc.carleton.edu/download/files/73862/usgs_irrigation_info.v2.pdf