@book{286246,
	author = {United States.},
	title = {Coltsville.},
	publisher = {National Park Service, Northeast Region, Division of Park Planning & Special Studies,},
	year = {2009.},
	series = {Special resource study},
	address = {Philadelphia, PA ;},
	note = {"November 2009."},
	url = {https://purl.fdlp.gov/GPO/gpo114393}
}