John L. Safko

Self-Paced Study Guide and Lab

Self-Paced Study Guide and Laboratory Exercises in Astronomy and Discovering Astronomy USC Version

2013

Self-Paced Study Guide and Laboratory Exercises in Astronomy

2002

Astronomy Study Guide and Exer

Astronomy Study Guide and Exercises for Distance Education

2001

Mind-Boggling Problems of Phil

Mind-Boggling Problems of Philosophy

2000

Study Guide and Lab Excersises

Study Guide and Lab Excersises in Astronomy

2000

Self-Paced Study Guide and Lab

Self-Paced Study Guide and Laboratory Exercise in Astronomy

1993

Study Materials for Project Un

Study Materials for Project Universe

1986