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Comets - History - 20th century.

Overview

Works:	1 works in 1 publications in 1 languages

Titles

Catalog of unconfirmed comets.. Volume 2,. 1900 to the present by: (Electronic resources)

Subjects

Comets- History- 20th century.

Astronomy, Observations and Techniques.

History of Physics and Astronomy.

Comets- History- 21th century.

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