Ready References
A Guide to Backyard Astronomy
Time and the Amateur Astronomer
Latitude is Everything
Activity: Estimating Magnitudes
Activity: Observing Delta Cephei
Introduction to Object-Oriented Software
The Myth of Amateur Science
Ready References A Guide to Backyard Astronomy 
Time and the Amateur Astronomer Latitude is Everything 
Activity: Estimating Magnitudes Activity: Observing Delta Cephei Introduction to Object-Oriented Software The Myth of Amateur Science