Call of Cthulhu Edition 5.6 RPG Core Rulebook (Chaosium, 1999, VG/EX) Hardcover

Call of Cthulhu 3rd Edition Rulebook Games Workshop/Chaosium, 1983, Hardcover

d20 - Call Of Cthulhu - 2002 Hard Back - Core Rule Book - d20 Version - WotC

Call Of Cthulhu - Core Rule Book - d20 Version - WotC - 2002 Hardcover RPG

Call of Cthulhu RPG : Investigator Weapons Vol. 1 (Sixtystone Press, 2013, EX)

Call of Cthulhu: Core Rules. Rare d20 adaption. Wizards of the Coast. 2002. VGC

Call of Cthulhu: 3rd Edition Rulebook by Sandy Peterson - Games workshop

Call of Cthulhu RPG 5th Edition Rulebook (Chaosium, 1992, EX)