201. Heritage Conservation and Recreation Service. Greenways of the Delaware River Basin, 1978. C6.4/No. 1

201. Heritage Conservation and Recreation Service. Greenways of the Delaware River Basin, 1978. C6.4/No. 1, Box: 28. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/191802 Accessed September 19, 2024.