11 | Add to Reading ListSource URL: www.digitalhistory.uh.eduLanguage: English - Date: 2008-02-06 12:51:28
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12 | Add to Reading ListSource URL: www.digitalhistory.uh.eduLanguage: English - Date: 2008-02-06 12:53:32
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13 | Add to Reading ListSource URL: www.digitalhistory.uh.eduLanguage: English - Date: 2008-02-06 12:53:15
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14 | Add to Reading ListSource URL: www.rbf.orgLanguage: English - Date: 2014-07-15 09:41:51
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15 | Add to Reading ListSource URL: www.ei.lehigh.eduLanguage: English - Date: 2009-06-10 08:33:41
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16 | Add to Reading ListSource URL: www.rbf.orgLanguage: English - Date: 2014-07-15 09:41:51
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17 | Add to Reading ListSource URL: www.rbf.orgLanguage: English - Date: 2014-07-15 09:41:53
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18 | Add to Reading ListSource URL: www.rbf.orgLanguage: English - Date: 2014-07-15 09:41:51
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19 | Add to Reading ListSource URL: www.imperialoil.caLanguage: English - Date: 2014-04-24 15:48:41
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20 | Add to Reading ListSource URL: www.data.boem.govLanguage: English - Date: 2008-11-03 09:33:41
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