Lion, John Lion's Commentary on UNIX, 6th Ed. With Source Code. ITP Media Group, 1996. ISBN 1573980137
Raymond, Eric S. The New Hacker's Dictionary, 3rd edition. MIT Press, 1996. ISBN 0-262-68092-0. Also known as the Jargon File
Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing Company, Inc., 1994. ISBN 0-201-54777-5
Simon Garfinkel, Daniel Weise, Steven Strassmann. The UNIX-HATERS Handbook. IDG Books Worldwide, Inc., 1994. ISBN 1-56884-203-1
Don Libes, Sandy Ressler Life with UNIX -- special edition. Prentice-Hall, Inc., 1989. ISBN 0-13-536657-7
The BSD family tree. 1997. ftp://ftp.FreeBSD.org/pub/FreeBSD/FreeBSD-current/src/share/misc/bsd-family-tree o local on a FreeBSD-current machine.
The BSD Release Announcements collection. 1997. http://www.de.FreeBSD.org/de/ftp/releases/
Networked Computer Science Technical Reports Library. http://www.ncstrl.org/
Antiguas releases BSD procedentes del Computer Systems Research Group (CSRG). http://www.mckusick.com/csrg/: El paquete de 4 CDs cubre todas las versiones de BSD desde la 1BSD hasta la 4.4BSD y 4.4BSD-Lite2 (pero no la 2.11BSD, desafortunadamente). El último disco contiene el código fuente final y los archivos SCCS.