. . . . . . . . . . . "USGS water resources data"@en . . . "Statistics"@en . "Statistics" . "Water resources data. Minnesota (CD-ROM)"@en . "Water resources data. Minnesota (CD-ROM)" . . . . . . . . "Water resources data. Minnesota (Online)"@en . "Periodicals"@en . . "Periodicals" . . . . . . "U.S.G.S. water resources data"@en . "Water resources data. Minnesota" . "Water resources data. Minnesota"@en . . "Minnesota"@en . . . . .