Astronomy - Observers' manuals.

Concise catalog of deep-sky objects = astrophysical information for 500 galaxies, clusters, and nebulae / by: (書目-語言資料,印刷品)

Star mentor = hands-on projects and lessons in observational astronomy for beginners / by: (書目-電子資源)

Through the telescope : = a guide for the amateur astronomer / by: (書目-語言資料,印刷品)

Exploring the starry sky / by: (書目-語言資料,印刷品)

Stargazers / by: (書目-語言資料,印刷品)

Galaxies and other deep-sky objects / by: (書目-語言資料,印刷品)

The Audubon Society field guide to the night sky / by: (書目-語言資料,印刷品)