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. Samuti tuntud kui 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. Raamat on trükist otsas, aga veebis olemas.
Don Libes, Sandy Ressler Life with UNIX -- special edition. Prentice-Hall, Inc., 1989. ISBN 0-13-536657-7
BSD sugupuu http://www.FreeBSD.org/cgi/cvsweb.cgi/src/share/misc/bsd-family-tree või FreeBSD masinas /usr/share/misc/bsd-family-tree .
BSD väljalasketeadete kogumik. 1997. http://www.de.FreeBSD.org/de/ftp/releases/
Networked Computer Science Technical Reports Library. http://www.ncstrl.org/
Vanad BSD väljalasked Computer Systems Research group-ilt (CSRG). http://www.mckusick.com/csrg/: 4 CD-st koosnev komplekt sisaldab kõiki BSD versioone alates 1BSD kuni 4.4BSD ja 4.4BSD-Lite2-ni (aga kahjuks mitte 2.11BSD-d). Neljandal plaadil on ka lõplik lähtekood koos SCCS failidega.