Does gta iv include references to other rockstar games?

The single source supplied focuses on Rockstar North’s history and its role in creating the Grand Theft Auto series, but it does not mention any specific content or Easter eggs within GTA IV itself. As a result, there is no documented evidence confirming or denying that GTA IV contains references to other Rockstar titles. Without additional reliable sources that detail the game’s internal references or Easter eggs, we cannot assert the presence or absence of such cross‑references. Therefore, based solely on the provided information, we cannot answer the question definitively. If you need a precise answer, you would need to consult more specific game guides or official Rockstar documentation that addresses GTA IV’s content.