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CORRECTIONS.

• Source: Sierra. May/Jun2017, Vol. 102 Issue 3, p5-5. 1/8p.

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The Beauty of This World.

• Authors : Rauber, Paul

• Source: Sierra. Jul/Aug2015, Vol. 100 Issue 4, p4-4. 1/3p.

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War Against Wildlife.

• Authors : Rauber, Paul

• Source: Sierra. Jul/Aug2013, Vol. 98 Issue 4, p20-20. 1p.

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INNOVATE: NEW DESIGNS IN WIND POWER.

• Authors : Ferris, David

• Source: Sierra. May/Jun2010, Vol. 95 Issue 3, p27-27. 1p.

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