I get mine at Varsity Books, which is at College and University, in Tempe. They have another real good book, about $22, the Arizona Rules of Court, including Local, State and Federal. In Tucson, call one of the off campus college bookstores.
The Arizona Criminal and Traffic Manual (and equivalents for most other states) may also be mailordered direct from Michie's, 1-800-562-1197. They will send a catalog on request, and they have CD-ROMs (expensive) with the various laws.
Minimum requirement for your personal law library:
1. Ballantine's Law Dictionary (it's the best, almost a miniature Words and Phrases)
2. Arizona Criminal and Traffic Law Manual
3. Arizona Rulse of Court
Michael