English Dutch (nl_NL)
Simon Garfinkel, Daniel Weise, Steven Strassmann. _The UNIX-HATERS Handbook_. IDG Books Worldwide, Inc., 1994. ISBN 1-56884-203-1. Out of print, but available http://www.simson.net/ref/ugh.pdf[online].
Don Libes, Sandy Ressler _Life with UNIX_ - special edition. Prentice-Hall, Inc., 1989. ISBN 0-13-536657-7
_The BSD family tree_. https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree[https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree] or link:file://localhost/usr/share/misc/bsd-family-tree[/usr/share/misc/bsd-family-tree] on a FreeBSD machine.
_Networked Computer Science Technical Reports Library_.
_Old BSD releases from the Computer Systems Research group (CSRG)_. http://www.mckusick.com/csrg/[http://www.mckusick.com/csrg/]: The 4CD set covers all BSD versions from 1BSD to 4.4BSD and 4.4BSD-Lite2 (but not 2.11BSD, unfortunately). The last disk also holds the final sources plus the SCCS files.
Kernighan, Brian _Unix: A History and a Memoir_. Kindle Direct Publishing, 2020. ISBN 978-169597855-3
Periodicals, Journals, and Magazines
http://www.admin-magazin.de/[Admin Magazin] (in German), published by Medialinx AG. ISSN: 2190-1066
http://www.bsdmag.org/[BSD Magazine], published by Software Press Sp. z o.o. SK. ISSN: 1898-9144
http://www.bsdnow.tv/[BSD Now - Video Podcast], published by Jupiter Broadcasting LLC
http://bsdtalk.blogspot.com/[BSD Talk Podcast], by Will Backman
http://freebsdjournal.com/[FreeBSD Journal], published by S&W Publishing, sponsored by The FreeBSD Foundation. ISBN: 978-0-615-88479-0