TY - BOOK AU - Armstrong,C.A. ED - North Dakota Geological Survey. ED - Geological Survey (U.S.) ED - North Dakota State Water Commission. TI - Geology and ground water resources of Divide County, North Dakota T2 - County ground water studies, 6 PY - 1965///- CY - Grand Forks KW - Geology KW - North Dakota KW - Divide County KW - Water-supply KW - Groundwater N1 - Prepared by the U.S. Geological Survey in cooperation with the North Dakota Geological Survey and the North Dakota State Water Commission; Includes bibliographies; --pt. 2. Ground water basic data, by C. A. Armstrong ER -