

@book {6729,
	title = {Ground {Water} {Resources} of {Bucks} {County}, {Pennsylvania}},
	number = {11},
	year = {1955},
	publisher = {Dept. of Internal Affairs, Topographic and Geologic Survey},
	organization = {Dept. of Internal Affairs, Topographic and Geologic Survey},
	author = {Greenman, David W.}
}
