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1
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2Published 1992Subjects: “...Amateur astronomy Congresses....”
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Conference Proceeding eBook -
3by Motz, Lloyd, 1910-Subjects: “...Astronomy....”
Published 1989
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eBook -
4
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5by Schlosser, W. (Wolfhard)Subjects: “...Astronomy Experiments....”
Published 1991
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6Published 2004Subjects: “...Astronomy Encyclopedias....”
Book -
7
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8Published 1949Subjects: “...Astronomy Periodicals....”
Journal -
9Published 1996Subjects: “...Astronomie Observations. ram...”
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10Published 2001Subjects: “...Astronomy Data processing Congresses....”
Book -
11by Neugebauer, O. (Otto), 1899-1990Subjects: “...Astronomy History....”
Published 1983
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eBook -
12
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13
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14Published 2008Subjects: “...Astronomy Study and teaching Congresses....”
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15Published 1996Subjects: “...Astronomy Study and teaching Congresses....”
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16by Unsöld, Albrecht, 1905-Subjects: “...Astronomy....”
Published 2002
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17
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18
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19
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20by Smart, W. M. (William Marshall), 1889-1975Subjects: “...Spherical astronomy....”
Published 1977
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