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1
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CCD astronomy : construction and use of an astronomical CCD camera /
Published 1991“…Richmond, VA : Willmann-Bell,…”
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Multiyear interactive computer almanac, 1800-2050 /
Published 2005“…Richmond, VA : Willmann-Bell,…”
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Multiyear interactive computer almanac, 1800-2050 [compact disc] /
Published 2005“…Richmond, VA : Willmann-Bell,…”
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6