TY - MAP ID - 134918182 TI - Philadelphia folio, Norristown, Germantown, Chester, and Philadelphia, Pennsylvania-New Jersey-Delaware : Chester quadrangle topography PY - 1908 PB - Washington, D.C. U.S Geological Survey DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:134918182 AB - ER -