1997 - The Dobsonian Telescope a Practical Manual for Building Large Aperture Telescopes (Hardcover) ISBN-13: 9780943396552 ISBN-10: 0943396557 Genres: Reference, Science & Math 1 |
1997 - The Dobsonian Telescope a Practical Manual for Building Large Aperture Telescopes (Hardcover) ISBN-13: 9780943396552 ISBN-10: 0943396557 Genres: Reference, Science & Math 1 |