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| A Selective Bibliography of Exploration Relating to the United States | 256 |
| March 2016 | April 2016 | May 2016 | June 2016 | July 2016 | August 2016 | September 2016 | |
| A Selective Bibliography of Exploration Relating to the United States | 4 | 2 | 14 | 11 | 8 | 13 | 4 |
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| A Selective Bibliography of Exploration.pdf | 124 |
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