Comment by bboreham

I have a copy of The Bell System Technical Journal July-August 1978 (third printing, 1982). This contains "The UNIX Time-Sharing System" by Ritchie and Thompson, plus about 10 other papers about UNIX.

I barely know anyone who would understand why I treasure it, let alone own a copy.

https://archive.org/details/bstj57-6-1905