A geography of Pennsylvania
The culture and economy of Pennsylvania have been developing for more than 300 years. As a consequence, human activities have evolved from those based on primary occupations in the eighteenth century to the manufacturing economy of the nineteenth and early twentieth centuries to the tertiary functio...
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University Park
Pennsylvania State University Press
1995
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| Thư viện lưu trữ: | Trung tâm Học liệu Trường Đại học Cần Thơ |
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