Unusual Telescopes
by Peter L. Manly
ISBN 13: 9780521483933
Format: Paperback (240 pages) Publisher: Cambridge University Press Published: 27 Apr 1995
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The 20-cm Schmidt-Cassegrain Telescope: A Practical Observing Guide
ISBN 13: 9780521644419
Format: Paperback (284 pages) Publisher: Cambridge University Press Published: 14 Oct 1999