GV - L12
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EncyclopediaTHE FIRST EXPLORERS BY FELIX BARKERS
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General Knowledge
THE MOON AND BEYOND BY FRED APPEL
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Encyclopedia
THE WORLD ENCYCLOPEDIA VOLUME 21
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Encyclopedia
SEAS AND SAND BY PAUL HAMILTON
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General Knowledge
THE CHALLENGE OF AFRICA BY ELSPETH HUXLEY
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General Knowledge
JUNGLE RIVERS & MOUNTAIN PEAKS BY MARCIA WILLIS
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Encyclopedia
THE WORLD BOOK ENCYCLOPEDIA VOLUME 19
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General Knowledge
GOD,GOLD AND GLORY BY NICHOLAS HORDEN
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General Knowledge
THE FROZEN WORLD BY THAYER WILLIS
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Encyclopedia
THE WORLD BOOK ENCYCLOPEDIA VOLUME 18
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General Knowledge
RIVERS OF DESTINY BY SIMON DRESNER