| The Columbia Gazetteer of North America. 2000. |
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| Aldan |
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| Aldan (AL-duhn), borough (1990 pop. 4,549), Delaware co., SE Pa., residential suburb 7 mi/11.3 km SW of downtown Philadelphia; 39°55'N 75°17'W. Mfg. |
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| | | The Columbia Gazetteer of North America. Copyright © 2000 Columbia University Press. |
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