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10Published 1964“...Pennsylvania Economy League. Eastern Division...”In collection: Published Materials
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11Published 1941“...Pennsylvania Economy League Philadelphia Committee...”In collection: Published Materials
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12Published 1997“...Pennsylvania Economy League. Eastern Division...”In collection: Published Materials
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13Published 1997“...Pennsylvania Economy League. Eastern Division...”In collection: Published Materials
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14Published 1990“...Pennsylvania Economy League. Western Division...”In collection: Published Materials
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15Published 1987“...Pennsylvania Economy League. Eastern Division...”In collection: Published Materials
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16Published 1999“...Pennsylvania Economy League. Eastern Division...”In collection: Published Materials
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18In collection: Published Materials
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19Published 1960“...Philadelphia Bureau of Municiple Research and Pennsylvania Economy League...”In collection: Published Materials
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20