| Afghanistan - the people |
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| A Freaky Friendship |
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| A Freshwater Pond |
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| Africa |
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| African Lion |
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| Agricultural Engineering and Feeding the Future |
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7.0 |
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| Agricultural Inventions: At the Top of the Field |
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5.9 |
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| A Guide to Support Reading (8 titles) |
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| A House Gives Shelter |
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| Air |
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| Air Combat |
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7.2 |
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| Aircraft Carriers: runways at sea |
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5.4 |
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| Air Force |
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| Air Force Careers |
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| Air War |
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4.5 |
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| Albert Einstein |
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| Albert Einstein: Forging the Path of Modern Physics |
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| Alcatraz |
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5.1 |
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| Al Gore: A Wake-Up Call to Global Warming |
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8.0 |
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| Alien Abduction |
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3.6 |
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| Alien Life Search - quest for extraterrestrial organisms |
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| Alien Visitations |
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5.9 |
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| All Around the U.S. (5 titles) |
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| All Ball: Basketball's Greatest Players |
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6.7 |
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Canada
USA
