. . . . . . . . "Delaware River Port Authority" . . . "1951" . . "Delaware River Port Authority#Rail Yard" . . "DRPA" . . . . . "Delaware River Port Authority#History" . . . . . . "Delaware River Port Authority of Pennsylvania and New Jersey" . . . . "Philadelphia Port Corporation" . . . . . . . . "Delaware River Port Authority" . . . . . . . . "Port Authority Transit Corporation" . . . . . . . . . . . "Delaware River Port Authority#Aerial%20tram" . . . "ports of Camden and Philadelphia" . . . . . .