Russo did not do any writing on NoTLD 3D, he's listed there because elements of his original script were adapted.
The novel he wrote is similar to RotLD only in name. Funnily enough, he novelized the movie that took the name from his novel. Weird...
Dario Argento, producer on Dawn of the Dead, did re-cut the film and release it in Europe as Zombi and it was Lucio Fulci who directed Zombi 2 (known as "Zombie" in North America). If my avatar is any indication, I am discussing this film along with several others by my favourite Italian director in a coming episode.