This issue has variants.
A Gil Kane/Klaus Janson alternate cover for this issue is printed in Ghost Rider #50. Sources for letters credit and Janson inks credit are The Marvel Comics Index (Olshevsky 1981) and Official Index to the Marvel Universe (Jensen et al. 2011). Previous indexer credited Klaus Janson with inks.
The Yellow Box Gazette; letters from Scott Carrica, Ken Hart, Jim Trefil, Neal Meyer; cartoon of aftermath of Hulk vs. Ghost Rider; Marvel Value Stamp Series A #66 (General Ross).