The database is a bibliography, combining three print resources from the NDGS, and updates: Scott, Mary Woods, 1972, Annotated bibliography of the geology of North Dakota,1806-1959, North Dakota Geological Survey Miscellaneous Series No.49. Grand Forks, ND: North Dakota Geological Survey, 132 p. Scott, Mary Woods, 1981, Annotated bibliography of the geology of North Dakota,1960-1979, North Dakota Geological Survey Miscellaneous Series No. 60. Grand Forks, ND: North Dakota Geological Survey, 287 p. Greenwood, Larry; Heck, Thomas J.; Biek, Robert F.; and Bluemle, John P., 1996, Bibliography of the Geology of North Dakota, 1980-1993, North Dakota Miscellaneous Series No. 83. Bismarck, ND: North Dakota Geological Survey, 370 p. Post-1993 updates, and other additions.