Ready References
A Guide to Backyard Astronomy
Using a Naked-Eye Starmap
Star-Finding With a Planisphere
AAVSO Publications and Periodicals
Control Instrument Applications
Technique of High Vacuum
A Glossary of Seismic Terms
Ready References A Guide to Backyard Astronomy 
Using a Naked-Eye Starmap Star-Finding With a Planisphere AAVSO Publications and Periodicals Control Instrument Applications 
Technique of High Vacuum A Glossary of Seismic Terms