The Fourth Edition manual was typeset in troff:
https://dspinellis.github.io/unix-v4man/v4man.pdf
https://github.com/dspinellis/unix-v4man
The Third Edition was nroff:
https://dspinellis.github.io/unix-v3man/v3man.pdf
https://github.com/dspinellis/unix-v3man
On 13-Sep-19 23:43, Clem Cole wrote:
Jon - Good catch and that is a good reminder.
Warner - You need to add troff and the C/A/T to your timeline. They
were too important. What I don't remember, although Doug or Steve
might, was the original troff 4th or 5th edition? bwk did
ditroff, later with the addition of the APS5.