- Dania Film
- (production)
- Medusa Distribuzione
- (production)
- National Cinematografica
- (production)
- Medusa Distribuzione
- (Italy, 1976)(theatrical)
- Mundial Film
- (Spain, 1976)(theatrical)
- Aquarius Releasing
- (United States, 1978)('Brutal Justice', cut version, dubbed, theatrical)
- Aquarius Releasing
- (United States, 1982)('Assault with a Deadly Weapon', retitled re-release, cut version, dubbed, theatrical)
- International Video Entertainment (IVE)
- (United States, 1986)(Adventure Video, cut version, dubbed, VHS)
- Clitumno
- (music copyright)
- Roman Fashion Club
- (Club Roman Fashion, styles: Maurizio Merli and Arthur Kennedy)
- Pomer di Lavinio
- (the Pomer Company of Lavinio, the production wishes to thank: for their kind cooperation)
- N.C.
- (synchronization)
- C.D.
- (synchronization collaboration)
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