@book{181651,
	author = {Galloway, Devin L.  },
	title = {Land subsidence in the United States},
	publisher = {U.S. Dept. of the Interior, U.S. Geological Survey},
	year = {1999 [i.e. 2000]   },
	series = {U.S. Geological Survey circular},
	address = {Reston, Va.}
}