00628nam 2200169z- 450 9910712729103321(CKB)5470000002496884(EXLCZ)99547000000249688420230509c2010uuuu -u- -engValley Forge National Historical Park : geologic resources inventory reportGeologic Resources Division, Natural Resource Program Center ;Denver, ColoradoValley Forge National Historical Park BOOK9910712729103321Valley Forge National Historical Park : geologic resources inventory report3311759UNINA