Marvel Super Heroes RPG Avengers Assembled (1984 TSR) comic books
Game Supplement #6854 - 1st printing. By Bruce Nesmith. The greatest collection of heroes, ever, annouced by their famous battle cry: Avengers Assemble! Includes a 32-page sourcebook with complete information on 30 past and present Avengers, 22 of their enemies, the Avengers mansion, and SHIELD! Softcover, 8 1/2-in. x 11-in., 32 pages, B&W.