I've scanned my small collection Xenix books and manuals (non SCO).
They are available for download here:
http://www.tenox.tc/docs/
List of what's available at date of this post:
* Apple Lisa XENIX Programmers Guide
* Apple Lisa XENIX Programmers Reference
* IBM XENIX C Compiler Reference
* IBM XENIX Command Reference
* IBM XENIX Programmers Guide To Library Functions
* Microsoft Multiplan for the XENIX OS
* Microsoft XENIX 286 Press Release
* Microsoft XENIX 3.0 Release Summary
* Microsoft XENIX OEM Directory
* Microsoft XENIX Programmers Manual
* Tandy Xenix Customizing Scripsit 16
* Tandy Xenix Introducing Your Tandy 6000
* Tandy The System Administrators Guide To Xenix
* Tandy Xenix The Users Guide To Xenix
* Tandy Using Xenix 3.2.0
Enjoy.
