<p/><br></br><p><b> Book Synopsis </b></p></br></br><p><b>Explore Philadelphia's relationship with the underground, as old as the city itself, dating back to when Quaker settlers resided in caves alongside the Delaware River more than three hundred years ago.</b></p><br><p>Explore the city under the The Ci<p/><br></br><p><b> Review Quotes </b></p></br></br><br>"In this detailed and meticulously researched text, Harry Kyriakodis and Joel Spivak offer readers a comprehensive discussion of Philadelphia's vast underground infrastructure." <i>National Speleological Society </i> <p/><br>
Cheapest price in the interval: 19.29 on November 8, 2021
Most expensive price in the interval: 19.29 on December 20, 2021
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