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5gan Clark, Thomas Dionysius, 1903-“...United States Territorial expansion....”
Cyhoeddwyd 1950
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6gan Steckmesser, Kent Ladd, 1928-“...United States Territorial expansion....”
Cyhoeddwyd 1969
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11gan Slotkin, Richard, 1942-“...United States Territorial expansion Historiography....”
Cyhoeddwyd 1998
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12Cyhoeddwyd 1956“...United States Territorial expansion Historiography....”
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15“...United States Territorial expansion....”
Traethawd Ymchwil Llyfr -
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17gan Bintliff, Amy Vatne“...United States Territorial expansion Study and teaching (Secondary)...”
Cyhoeddwyd 2011
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