The Dungeon Master's Guide (Advanced Dungeon and Dragons 2nd Edition Hardcover Rulebook) by TSR Staff
Monstrous Manual (AD&D 2nd Ed Fantasy Roleplaying Accessory, 2140) by Doug Stewart
TOME OF MAGIC (Advanced Dungeon and Dragons/2nd Edition : Accessory Rule Book) by David Cook
The Complete Thief's Handbook (AD&D 2nd Ed Rules Supplement, PHBR2) by Douglas Niles
The Complete Wizard's Handbook, Second Edition (Advanced Dungeons & Dragons: Player's Handbook Rules Supplement #2115 by Rick Swan