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HYDROPOWER: MAKING A SPLASH by HANSEN, AMY S. (Paperback - 2010) ISBN: 9781435897465 Subject: CHILDREN Publisher: POWERKIDS |
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NUCLEAR ENERGY: AMAZING ATOMS ( POWERING OUR WORLD ) by HANSEN, AMY S (Paperback - 2011) ISBN: 9781435897441 Subject: SCIENCE & NATURE Publisher: POWERKIDS PRESS |
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WIND ENERGY: BLOWN AWAY by HANSEN, AMY S. (Paperback - 2010) ISBN: 9781435897427 Subject: CHILDREN Publisher: POWERKIDS |
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