""This volume represents a group of Pennsylvania institutions in whose libraries manuscripts are housed. It lists historical societies, public libraries, museums, and academic institutions, but is not intended to cover the vast number of manuscript collections in the archives of families and commercial enterprises, and in the hands of private collectors."--Pref."
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This is a placeholder reference for a Place entity, related to a WorldCat Entity. Over time, these references will be replaced with persistent URIs to VIAF, FAST, WorldCat, and other Linked Data resources.