The GTA 3 reference can be found in the Ocean View Hotel, as Claude can be seen in the poster in-between the "Bite" and the "Close Encounters" posters.

In GTA 3, the community can all agree that Claude is approximately 30 years old. This would mean that he was born around 1970 in the GTA world, making him still a teenager in 1986 when Vice City ...

In "Grand Theft Auto: Vice City," you will find Ken Rosenberg, ... At the back entrance of Luigi's Club is a fictional movie poster "Badfellas," which obviously references to "Goodfellas" film.