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1.
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An Introduction
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2.
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An Introduction
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3.
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An Introduction
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4.
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An Introduction
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5.
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6.
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ISBN:
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978-0-939873-52-4
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Book Format:
- Paperback
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List Price:
- USD $10.00
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Publisher:
- National Center for Science Education, Incorporated
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Publication Date:
- Jan 1992
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7.
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An Introduction
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8.
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An Introduction
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9.
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An Introduction
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10.
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An Introduction
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11.
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An Introduction
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12.
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An Introduction
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