(DVRPC), Delaware Valley Regional Planning Commission. "DVRPC > Site Search". www.dvrpc.org. Archived from the original on April 9, 2019. Retrieved March 21, 2014.
(DVRPC), Delaware Valley Regional Planning Commission. "DVRPC > Site Search". www.dvrpc.org. Archived from the original on April 9, 2019. Retrieved March 21, 2014.