614 resultados para Philadelphia, Pennsylvania
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Includes Bibliographical Notes.
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At head of title, v. 1-4: Pennsylvania State Department of Agriculture.
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Mode of access: Internet.
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Cover title.
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Cover title.
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v. 1. Inspection Service .-- v.2. Medical Service.-- v.3. Police and Fire Service .-- v.4. Clerical and executive service . -- v.5. Engineering Service . -- v.6. Special and Teaching Services ; Miscellaneous Service. -- v.7. Supervising. Skilled Labor and Unskilled Labor Services.
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"September 1995."
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Mode of access: Internet.
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Bibliography: p. 288-303.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Cover title.
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"National Water-Quality Assessment Program"
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Mode of access: Internet.