Merged aeromagnetic and gravity data for Montana [microform] : a web site for distribution of gridded data and plot files / by A.E. McCafferty, Viki Bankey, and K.C. Brenner ; U.S. Department of the Interior, U.S. Geological Survey (Open-file report ; 98-333)
Merged aeromagnetic and gravity data for Montana [microform] : a web site for distribution of gridded data and plot files / by A.E. McCafferty, Viki Bankey, and K.C. Brenner ; U.S. Department of the Interior, U.S. Geological Survey