data analysis for physical science students (required for PHYS 67), $20
http://www.amazon.com/Practical-Analysis-Physical-Science-Students/dp/0521424631/

Kittel: introduction to solid state physics (good reference for PHYS 172/APPPHYS 272), $90
http://www.amazon.com/Introduction-Solid-Physics-Charles-Kittel/dp/047141526X/

Reif: fundamentals of statistical and thermal physics (good reference for PHYS 170/171, required for ME 346A), $90
http://www.amazon.com/Fundamentals-Statistical-Thermal-Physics-Frederick/dp/1577666127

All in great, like-new condition.

Located on campus.