ELECTRONIC PINBALL GAMES REPAIR PROCEDURES F.O. 560 (June, 1977);
                                                560-1 (July, 1978);
                                           F.O. 560-1 (italian version by 'Domino')
                                                560-2;
                                                560-3;
                                                601 (June, 1978)
BALLY FRANCE S.A.: "manuel technique entretien et depannage de flippers electroniques" (FRENCH)