Geological Survey (U.S.) & Sacks, P. E. (1996). Geologic map of the Gasburg 7.5-minute quadrangle, Brunswick County, Virginia, and Warren, Northampton, and Halifax counties, North Carolina. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Paul E. Sacks. Geologic Map of the Gasburg 7.5-minute Quadrangle, Brunswick County, Virginia, and Warren, Northampton, and Halifax Counties, North Carolina. Reston, VA: The Survey, 1996.
MLA (9th ed.) CitationGeological Survey (U.S.) and Paul E. Sacks. Geologic Map of the Gasburg 7.5-minute Quadrangle, Brunswick County, Virginia, and Warren, Northampton, and Halifax Counties, North Carolina. The Survey, 1996.
Warning: These citations may not always be 100% accurate.