Amiga UNIX is quite rare, but even more rare are the draft manuals for the OS, thanks to Camilla Boemann,
Amiga UNIX Installing and Learning Amiga UNIX draft and Software Guide. (Using Amiga UNIX is yet to be scanned).
Manuals -> Software Manuals -> Amiga Software
Amiga OS 3.1 DOS.
Amiga Unix System V Release 4.
Installing Amiga Unix and Learning Amiga Unix are now added.