Edberg, Stephen J. books & textbook
Observing Comets, Asteroids, Meteors, and the Zodiacal Light (Practical Astronomy Handbooks, Series Number 5)
Edberg, Stephen J. Levy, David H.
Cambridge University Press /1994-11-25 Hardcover / 259 Pages
isbn-10: 0521420032 / isbn-13: 9780521420037
International Halley Watch Amateur Observers' Manual for Scientific Comet Studies
Sky Pub Corp /1983T Paperback / 192 Pages
isbn-10: 0933346409 / isbn-13: 9780933346406
