Yes, the CACM along with all of the SIG* journals. TBH I gave up my membership when the ACM seemed more of a money grab and less about computing.
You are correct, and I'll deny having a 1978 copy of the SIGPLAN (Programming Languages) Conference docs on the history of some of the languages that were popular then. :-)
SIGPLAN is my only ACM membership; I figure I can support my primary publishing organization at $25/year or whatever. So your 1978 issue sounds like a pretty cool piece of history to have to me!
You are correct, and I'll deny having a 1978 copy of the SIGPLAN (Programming Languages) Conference docs on the history of some of the languages that were popular then. :-)