Complex sentence: Kubert served as DC Comics' director of publications from 1967-76, and supervised the production of the Tarzan, Korak, Sgt. Rock, Ragman and Weird Worlds comic books.
Split into simpler sentences: Kubert served as DC Comics' director of publications from 1967-76. Kubert also supervised the production of the Sgt. Rock, Ragman and Weird Worlds comic books.