974 Northeastern United States (New England and Middle Atlantic states)
974.8 Pennsylvania
974.801 Pennsylvania--early history to 1620 974.802 Pennsylvania--1620-1776 974.803 Pennsylvania--1776-1865 974.804 Pennsylvania--1865- de
974 Nordöstliche Staaten der USA (Neuengland und Mittelatlantische Staaten)
974.8 Pennsylvania
974.801 Pennsylvania—Anfänge bis 1620 974.802 Pennsylvania—1620–1776, . . . 974.803 Pennsylvania—1776–1865, . . . 974.804 Pennsylvania—1865–
Dewey Decimal Classification
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