The exact print date is unknown. There are however, 6 years listed in the copyright info section 1972 - 1977.
The Warren Companion (TwoMorrows Publishing, 2001) lists this as the first issue of the Warren Presents series. See the series notes for Warren Presents (Warren, 1979 series) for more details.
This page gives the credits for the issue and page numbers for each story plus a brief synopsis.
This is part one of a two part tale. Continued in the next sequence.
Part 2 of 2.