Books Legal for Living Greyhawk:
Complete Mage
Complete Scoundrel
Complete Warrior
Dungeon Master's Guide
Frostburn
Miniatures Handbook
Monster Manual
Player's Handbook
Player's Handbook 2
Races of Destiny
Races of the Dragon
Races of Stone
Races of the Wild
Sandstorm
Spell Compendium
Stormwrack